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.

The fire of knowledge kindled by science has already burnt many dogmas and beliefs, held sacred by the superstition of the past, which stood in the way of truth-seeking minds.