参考答案：B

解析：[听力原文] 1-5
F: New studies are proving that more and more Americans are living way beyond their expectations, into their eighties or nineties and even into a second century.
M: Sounds very interesting.
F: So then, we decided to get a first-hand look into this incredible group of senior citizens, the oldest old, centenarians, individuals who are over 100. We decided to visit a unique village whose 150 elderly residents, 90% of whom are over 85, live independently in small apartments. Last June we spent a lovely sunny afternoon at Cherry Blossoms Village in Baltimore, Maryland. There we met with the director of the village and had the opportunity to speak with a few of the remarkable centenarians living there.
M: According to recent statistics, the number of centenarians is growing rapidly. There are estimated to be more than 3,600 centenarians in the United States, which is double the number 10 years ago. If you were born 100 years ago you had 1 in 400 chance of becoming a centenarian, but if you were born in 1980, you had 1 in 87 chance. And by the year 2080, you’ll have 1 in 40 chance.
F: Yes. I just read some fascinating new research done by some scientists in Georgia who studied 96 non-institutionalized, independent centenarians. They wanted to discover what the real secrets were to becoming an active and healthy 100-year-old. They were quite surprised by what they found. Most people believe diet, exercise, and genetics are the common threads among most centenarians. However, they were not among the traits that all of these individuals had in common.
M: OK then ... What were the common themes What did the scientists find out
F: Well, they uncovered four themes that all 96 of their centenarians had in common. These were optimism, engagement or commitment to something they were interested in, activity or mobility, and the strength to adapt to loss. All four of these themes were pervasive among the oldest old they studied.
M: I was told that they have centenarians living in that Baltimore village who have unconventional hobbies such as competitive swimming, auto racing, and horseback riding. Is this the norm
F: Well ... no, not exactly ... not all of them take it quite this far, but all of our residents do some sort of regular physical activity.
M: And what about diet
F: They found that the centenarians they studied had the highest calorie intake and ate the largest amount of fat.
M: Well, when speaking with the centenarians in the village, what do they tell you about diet and nutrition I mean, do they offer advice about good eating habits and nutrition that may help someone live longer
F: Oh, all of them basically do something different. Some of them eat a low-fat and low-calorie, unprocessed food diet. But others suggest everyone eat spicy food, drink whiskey, and have a large portion of sweet pork every day. The nutritionist must be totally baffled as to why some of the centenarians can defy good nutritional rules and get away with it.
M: Earlier you mentioned that the Georgian researchers found that the ability to cope with loss is another characteristic that healthy centenarians share.
F: Yes, exactly! If you live to be 100 you are bound to lose a lot. It’s natural. Most of our centenarians have lost a spouse, children, and siblings. Many have lost their peer group as well. But in spite of this, they are able to incorporate that loss in a positive way so they can go on with their lives.
M: One final question about the centenarians. So if I want to live to be 100, what would they suggest I do
F: I guess most of them would suggest that you work hard, stay busy, and always find something to laugh about.

1. Which of the following statements is TRUE according to the dialogue