题目选项分析

In the aftermath of a worldwide stock-market crash, Country T claimed that the severity of the stock-market crash it experienced resulted from the accelerated process of denationalization many of its industries underwent shortly before the crash.

Which of the following, if it could be carried out, would be most useful in an evaluation of Country T's assessment of the causes of the severity of its stock-market crash?

【选项】comparing the total number of shares sold during the worst days of the crash in Country T to the total number of shares sold in Country T just prior to the crash