Which of the following is a true statement about the Federal Reserve?

Adjustment of the primary credit lending rate is the most common means by which the Fed controls the money supply.

The Feds primary goal has historically been to add liquidity to the mortgage market by continuously purchasing mortgage-backed securities.

Each member of the Board of Governors is appointed by the president of the United States and serves a nonrenewable 14-year term.

Most of the Fed's income is transferred to the U.S. Department of Justice.