[单项选择]

The following questions present a sentence, part of which or all of which is underlined. Beneath the sentence, you will find five ways of phrasing the underlined part. The first of these repeats the original; the other four are different. If you think the original is best, choose the first answer; otherwise choose one of the others.
These questions test correctness and effectiveness of expression. In choosing your answer, follow the requirements of standard written English; that is, pay attention to grammar, choice of words, and sentence construction. Choose the answer that produces the most effective sentence; this answer should be clear and exact, without awkwardness, ambiguity, redundancy, or grammatical error.

Atmospheric scientists in recent years have observed increasing concentrations of chlorofluorocarbons in the tertiary layer of the stratosphere, findings consistent with the documented growth in chlorofluorocarbon emissions from industri
A. findings consistent with the documented growth in chlorofluorocarbon emissions from industrial activity
B. which are consistent with the documented growth in chlorofluorocarbon emissions from industrial activity
C. a finding consistent with growth in chlorofluorocarbon emissions from industrial activity, as documented
D. finding documented growth consistent with chlorofluorocarbon emissions from industrial activity
E. which findings are consistent with industrial activity’s documented growth in chlorofluorocarbon emissions