Between 1986 and 2009, What Was the Basic Trend in U.S.–China

Between 1986 and 2009, what was the basic trend in U.S.–China trade?

A) imports and exports grew dramatically and proportionally.
B) Chinese exports to the United States increased dramatically,while Chinese imports from the United States increased modestly.
C) imports and exports grew slowly,consistently,and proportionally.
D) Chinese exports to the United States increased modestly,while Chinese imports from the United States increased dramatically.