What Does the Account,retainage Payable,represent in the Financial Statements of a Capital

What does the account,retainage payable,represent in the financial statements of a Capital Projects Fund?

A) a long-term liability
B) an amount owed to other governments because capital grant provisions were not met
C) an amount held back by a government when paying a contractor
D) an amount that can be reported in the General Fund,but not a Capital Projects Fund