If the Required Reserve Ratio Was Increased, Then

If the required reserve ratio was increased, then:

A) ​the money supply would tend to decrease, but the outstanding loans of banks would tend to increase.
B) ​both the money supply and the outstanding loans of banks would tend to decrease.
C) ​the money supply would tend to increase, but the outstanding loans of banks would tend to decrease.
D) ​both the money supply and the outstanding loans of banks would tend to increase.