问题如下：
If one-year forward rates are decreasing with maturity, the yield curve is most likely:
选项：
A. flat
B. upward-sloping
C. downward sloping
解释：
C is correct.
考点：考察Forward rates和Yield curve之间的关系
解析：如果随着期限的变化，One-year forward rate是下降的，则forward curve向下倾斜。因此Yield curve也是向下倾斜的。
这道题没明白是哪个知识点呢？
