如何理解？a为什么不对

问题如下：

Which modified allocation technique would best meet Nichols’ requirements?

选项：

A.Reverse optimization

B.The Black-Litterman model

C.Resampled mean–variance optimization

解释：

Resampled mean–variance optimization combines Markowitz’s mean–variance optimization framework with Monte Carlo simulation and, all else equal, leads to more-diversified asset allocations. In contrast to reverse optimization, the BlackLitterman model, and constraints, resampled mean–variance optimization is an attempt to build a better optimizer that recognizes that forward-looking inputs are inherently subject to error.