In Irving Fisher's Two-Period Consumption Model, If Y

In Irving Fisher's two-period consumption model, if Y
1
= 20,000, Y
2
= 15,000, and the interest rate r is 0.50 (50
Percent) , then the maximum possible consumption in period two is:

A) 15,000.
B) 25,000.
C) 35,000.
D) 45,000.