U.S. automobile manufacturers chose not to switch to producing subcomp

U.S. automobile manufacturers chose not to switch to producing subcompact cars for which of the following reasons?

(a) They did not perceive the U.S. demand for subcompacts as permanent.
(b) This switch was not economically feasible in the long run.
(c) Government policy prevented them from doing so.
(d) All of the above.

ANSWER

(a)