Suppose that the typical consumer buys one apple and one orange every month. In the base year 2006, the price for each was ￥1. In 2016, the price of apples rises to ￥2, and the price of oranges remains at ￥1. Assuming that the CPI for 2006 is equal to 100, the CPI for 2016 would be equal to ______
选项：

A:50.
B:100.
C:150.
D:200.