Which of the following is NOT true regarding Federal funds rate and discount window

Select one:

a. Discount rate is higher than the Federal funds rate most of the time so to discourage banks from borrowing from the central bank.

b. Discount rate cant be set by the Federal Reserve as it is determined by the market supply and demand.

c. Announcements from FOMC meetings showed that our interest rate will stay at a very low level for the near future.

d. Discount rate has been reduced to equal to the upper limit of the Federal funds rate during the pandemic.