Which of following is a correct order of the average athematic mean return for asset classes from highest (left) to lowest (right):

A. Corporate bonds, U.S. treasury Bills, small-company stock, large-company stocks, and government bonds.

B. Government bonds, U.S. treasury bills, large company stocks, small-company stocks, and corporate bonds,

C. Corporate bonds, small-company stocks, large-company stocks, government bonds, and U.S. Treasury bills.

D. Small-company stocks, large-company stocks, corporate bonds, government bonds, and U.S. Treasury bills.