问题如下：
Which of following ratios reflect a company's liquidity in a crisis situation?
选项：
A. Cash ratio
B. Current ratio
C. Quick ratio
解释：
A is correct. In a crisis situation, only cash and short-term marketable securities are included in numerator to calculate liquidity ratio, which is called cash ratio.
这道题不太明白。请帮忙解答。谢谢。
