题目不完整,估计出现部分不是主句,选In spite of what.见过一个类似的句子：____ has recently been done to provide more buses for the people, a shortage of public vehicles remains a serious problem.
A. That B. What C. In spite of what D. Though what
选C.A和B不能表示“让步”.C中what同时做of的介词宾语.D中though后应该用many之类而不能用what