Mercedes-Benz Sells the B Series Cars in Canada but Not

Mercedes-Benz sells the B series cars in Canada but not in the United States.This is most likely because

A) They want to limit the number of autos they sell in the U.S.market
B) The B series vehicles don't appeal to the target market identified in the U.S.
C) Sales in Canada are sufficient to meet Mercedes-Benz goals
D) NAFTA regulations do not permit the B Series vehicles into the U.S.