This question presents 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.
Standing upright and arranged in a circle, England's Stonehenge monument is an intriguing ancient structure whose appearance, history, and purpose attract the attention of about one million visitors each year.