$64$ Multiple Choice $1$ point

Assume that the required reserve ratio is $20$ percent. A business deposits a $$50,000$ check at Bank $A$; the check is drawn against Bank $B.$ What happens to the reserves at Bank A and Bank B$?$

increase by $$10,000$ at Bank $A,$ and decrease by $$50,000$ at Bank $B$

increase by $$50,000$ at Bank $A,$ and decrease by $$50,000$ at Bank B

increase by $$10,000$ at Bank A$,$ and decrease by $$10,000$ at Bank B

Reserves stay the same in both banks.