Economic Question-Required reserves are the amount of?

Question

Required reserves are the amount of

reserves a bank must hold against its deposits as mandated by the Federal Reserve.

cash a bank must hold against its deposits as mandated by the Federal Reserve.

checkable deposits a bank must hold against all other deposits as mandated by the U.S. Treasury.

reserves a bank must hold against all its assets as mandated by the Federal Reserve.

plz help thank you

Answer 1

b) cash a bank must hold against its deposits as mandated by the Federal Reserve.