这道题是不是出错了？

问题如下：

What is a problem with Winthrop’s benchmark preference?

选项：

The geographic limitation to Canadian equities

The exclusion of fixed-income securities given Winthrop’s signifcant exposure

The inclusion of all sectors

解释：

Winthrop desires exposure to global equity markets, so the equity benchmark should be global as well—for example, the MSCI All Country World Index.
B is incorrect because Winthrop was stating a preference for the benchmark for his equity allocation. Including fixed income would be inappropriate.
C is incorrect because including all sectors is appropriate because his investment strategy includes all sectors.