请问这个结果何老师不是说不能用于计算么？

问题如下：

An analyst gathers the following data for a potential short-term investment:

Over the next year, if uncovered interest rate parity holds, the NZD is expected to appreciate

选项：

A.

1.25%

B.2.00% C.2.25%

解释：

A Correct because if the uncovered interest rate parity holds the expected change in the spot exchange rate over the investment horizon should be reflected in the interest rate differential:

7.50% – 6.25% = 1.25%

A 选项正确，因为若无抛补利率平价（Uncovered Interest Rate Parity, UIP）成立，投资期限内即期汇率的预期变动率应等于两国利差：
=if​−id​=7.50%−6.25%=1.25%

根据 UIP 理论，投资者承担汇率风险时，更高的外国利率（7.50%）应被预期的本币升值（或外币贬值）所抵消，最终使国内外投资的预期收益相等。题目中直接通过利差计算预期汇率变动，符合 UIP 的核心逻辑（预期汇率变动率等于利差），因此 A 选项正确。