An investor opens an account with BNZ Government Securities, a broker-dealer limiting its transactions exclusively to securities issued by the U.S. government. The account holds $250,000 of Treasury bonds, $250,000 of Treasury notes, and $50,000 in cash. If BNZ's broker-dealer business should fail, the investor would receive SIPC protection in the amount of:
A. All of the securities & all of the cash, because U.S. Gov't Securities do not go bankrupt.
B. $50,000 of the cash & $450,000 of the securities.
C. $0.00.
D. $500,000 of the securities, none of the cash.