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.

Tax incentive to the salaried class has lead to a boom in the sale of residential apartment complexes; so abundant has capital been for residential real estate that builders regularly scout the country for suitable sites.