迷茫的一道题

10. Exports of United States wood pulp will rise consid-
erably during this year. The reason for the rise is
that the falling value of the dollar will make it
cheaper for paper manufacturers in Japan and West-
ern Europe to buy American wood pulp than to get
it from any other source.

Which of the following is an assumption made in
drawing the conclusion above?
(A) Factory output of paper products in Japan and
Western Europe will increase sharply during
this year.
(B) The quality of the wood pulp produced in the
United States would be adequate for the
purposes of Japanese and Western European
paper manufacturers.
(C) Paper manufacturers in Japan and Western
Europe would prefer to use wood pulp
produced in the United States if cost were
not a factor.
(D) Demand for paper products made in Japan and
Western Europe will not increase sharply
during this year.
(E) Production of wood pulp by United States
companies will not increase sharply during
this year.

这个题，新东方给的逻辑思路我感觉挺怪异，并不好用，而且费时间，我想听听各位牛哥，牛姐的想法，思路，给自己迷茫的天空灿烂的阳光，呵呵~，谢谢大家！！！