LSAT-28-2-9

9. Early pencil leads were made of solid graphite mined in Cumberland, in Britain. Modern methods of manufacturing pencil leads from powdered graphite are the result of research sponsored by the government of France in the 1790s, when France was at war with Britain and thus had no access to Cumberland graphite. The information above most strongly supports which one of the following?

(A) The world’s only deposit of graphite suitable for manufacture of pencils is in Cumberland, in Britain.

(B) In the 1790s, France’s government did not know of any accessible source of solid graphite appropriate to meet France’s need for pencils.

(C) One of the causes of war between France and Britain in the 1790s, was the British government’s attempt to limit the amount of Cumberland graphite being exported to France.

(D) Government-sponsored research frequently gives rise to inventions that are of great benefit to society.

(E) Even today, all pencil leads contain Cumberland graphite.

为什么A不对呢？如果A成立，加强了说French在别的地方的不到啊，说别的地方没有。B也对，说French不知道别的resource,就是说其实是有别的resource的。

谢谢解答！

这一题的问的是，假定提干的陈述是正确的，它最支持下面哪一个；而不是问你，下列哪一个最支持题干的陈述。

哦，谢谢！清楚了！