问题
单项选择题
A．Whether the centenarians can live independently in small apartments.
B．Whether it is feasible to establish a village for the "oldest old” people.
C．What percentage of the population are centenarians in the state of Georgia
D．What the real secrets are to becoming an active and healthy 100-year-old
答案
参考答案：D
解析：[听力原文]
What did the scientists in Georgia want to find out