问题如下：
Which of the following is a source of wholesale funds for banks?
选项：
A.Demand deposits
B.Money market accounts
C.Negotiable certificates of deposit
解释：
C is correct.
Wholesale funds available for banks include central bank funds, interbank funds, and negotiable certificates of deposit. A and B are incorrect because demand deposits (also known as checking accounts) and money market accounts are retail deposits (not wholesale funds).
这个知识点是哪里？
