问题如下：
When inventors try to apply business cycle analysis to global industry, which of the following limitations would most likely to be true?
选项：
A.There are low correlations of security returns between different world markets.
B.There are some industries quite insensitive related to the business cycle.
C.A global company can experience economic expansion in one part of the world while experiencing recession in another part.
解释：
C is correct.
One region of the world may experience recession while another region experiences expansion. This would affect the sales’ comparisons of companies around the world.
A和B为什么错？
