A

The suggested percentage of total deposits that a bank should keep on reserve

The legally mandated percentage of total deposits that a bank must send to the federal reserve bank

The legally mandated percentage of total deposits that a bank may invest

The legally mandated percentage of total deposits that a bank must keep on reserve.

Total reserves plus required reserves

Total reserves minus required reserves

The amount banks can safely invest in high risk activities

The amount banks must keep on hand for customers

By borrowing excess reserves

By lending required reserves

By lending excess reserves

By telling the Fed they need more money; and the Fed creates it