问题
单项选择题
The current 4 - year spot rate is 4% and the current 5 - year spot rate is 5.5%. What is the 1 - year forward rate in four years（）
A. 8.62%.
B. 9.58%.
C. 11.72%.
答案
参考答案：C
解析：
1f4=(1.055)5/(1.04)4-1=0.1172