Why Might Congress Benefit from the Fed Being Self-Financed

Why might Congress benefit from the Fed being self-financed?

A) Self-financing increases Congressional control over the Fed.
B) Self-financing reduces the Fed's exposure to external pressures.
C) Self-financing gives the Fed an incentive to expand the money supply, which ultimately results in Congress having additional funds to spend.
D) Congress does not benefit from the Fed being self-financed; Congress is obliged by the Constitution to allow the Fed to be self-financed.