Q29:
From 1985 to 1994, what was the percent increase in total United States trade?
(1) Total United States trade in 1985 was 17 percent of gross domestic product in
1985.
(2) Total United States trade in 1994 was 23 percent of gross domestic product in
1994.

答案是E 为什么不是C呢？

谢谢解答！