又一道题请教

The United States minted about 857 million silver-colored“Susan Anthony” dollars between 1979 and 1981, but the coinproved unpopular because it looked and felt too much like a quarter.

A.   TheUnited Statesminted about 857 million silver-colored “Susan Anthony” dollars between 1979and 1981, but the coin

B.   About857 million silver-colored “Susan Anthony” dollars were minted as coins in the United Statesbetween 1979 and 1981 but

C.   About857 million silver-colored “Susan Anthony” dollars that were minted between1979 and 1981 in the United  States

D.   About857 million silver-colored “Susan Anthony” dollars that the United States mintedbetween 1979 and 1981

E.    Between1979 and 1981 the United  States minted about 857 millionsilver-colored “Susan Anthony” dollars, which

答案是a,我选的b,感觉b更简单啊