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.

Among students of “biotic interactions” there has developed a controversial law or principal that is of more than academic interest, since it has social implications of the most far-reaching scope.