Using the one-year holding period and multiple-year holding period dividend discount model (DDM), calculate the change in value of the stock of Monster Burger Place under the following scenarios. First, assume that an investor holds the stock for only one year. Second, assume that the investor intends to hold the stock for two years. Information on the stock is as follows: Last year’s dividend was $ 2.50 per share. Dividends are projected to grow at a rate of 10.0% for each of the next two years. Estimated stock price at the end of year 1 is $ 25 and at the end of year 2 is $ 30. Nominal risk-free rate is 4.5%. The required market return is 10.0%. Beta is estimated at 1.0. The value of the stock if held for one year and the value if held for two years are, respectively:（）

A. $ 27.50 and $ 35.25.

B. $ 25.22 and $ 29.80.

C. $ 27.50 and $ 29.80.

逻辑斯谛曲线常被划分为哪几个时期，各代表什么生态意义