which指代问题～～～

bycsscsq

Sales of United States manufactured goods to non-industrialized countries rose to $167 billion in 1992, which is 14 percent more than the previous year and largely offsets weak demand from Europe and Japan.

A) which is 14 percent more than the previous year
B) which is 14 percent higher than it was the previous year
C) 14 percent higher than the previous year's figure
D) an amount that is 14 percent more than the previous year was
E) an amount that is 14 percent higher than the previous year's figure
答案e
白勇说a错是因为which修饰167billion    可我咋认为which就近修饰1992啊？请nn们解答～～～