问题如下：
Which of following statements about the secondary sources of liquidity is least correct?
选项：
A.Secondary source is a signal indicating a company's financial position is deteriorating.
B.Secondary sources of liquidity are the sources of cash a company uses in its normal operations.
C.If primary sources are inadequate, a company can use secondary sources of liquidity.
解释：
B is correct.
Option B is a description of primary sources of liquidity.
老师，这个知识点在讲义哪里？
