Comparing U

Comparing U.S. household portfolios in 2006 with U.S. household portfolios in 1950, which of the following statements is true?

A) Pension reserves were a larger fraction of U.S. household portfolios in 2006, but U.S. government securities were a smaller fraction.
B) Life insurance reserves were a larger fraction of U.S. household portfolios, but pension reserves were a smaller fraction.
C) Money market mutual funds were a smaller fraction of U.S. household portfolios, but U.S. government securities were a larger fraction.
D) U.S. government securities were a smaller fraction of U.S. household portfolios, but life insurance reserves were a larger fraction.