Please explain to me whether each of the following events increases or decreases the

money supply. Also, please explain to me why the following events increase or decrease the money supply.

Explain whether each of the following events increases or decreases the

money supply.

a. The Fed buys bonds in open-market operations.

b. The Fed reduces the reserve requirement.

c. The Fed increases the interest rate it pays on reserves.

d. Citibank repays a loan it had previously taken from the Fed.

e. After a rash of pickpocketing, people decide to hold less currency.

f. Fearful of bank runs, bankers decide to hold more excess reserves.

g. The FOMC ( Federal Open Market Committee ) increases its target for the federal funds rate.

Thank you in advance.