问题
单项选择题
Assuming a flat term structure of interest rates of 5 percent, the duration of a zero-coupon bond with 5 years remaining to maturity is closest to:（）
A. 5.00.
B. 4.35.
C. 6.34.
答案
参考答案：A
解析：
The duration of a zero coupon bond is approximately equal to its time to maturity.