Directions: This question presents a sentence, all or part 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.

Genetic mapping, along with chromosomal dissection and life form creation, are attempts to speed up the natural process, but while nature takes millions of years to effect even a minor change, human beings try to evolve these evolutionary changes in decades.