The US General Accounting Office (GAO) Has Concluded That _____ Would

The U.S. General Accounting Office (GAO) has concluded that _____ would help the introduction of a dollar coin be successful.

A) subsidizing businesses that accept bills to help them transfer over to coins
B) removing the dollar bill from circulation
C) choosing to place a well-known public figure on the coin
D) rounding prices to the nearest dollar