15. The second paragraph (the highlighted sentence) primarily serves to provide:

Answer and Explanation

Your Answer is

Correct Answer is D

Explanation

The first sentence of the second paragraph, "The sailing is all the more remarkable because of the canoe made of stone, bone and coral." The subjects of the following sentences are all canoes or synonyms, that is, to expand the detailed description. The purpose of this paragraph is to describe the panorama of canoes.

Item A: The outrigger is too specific.

Item B: Repair cracks are too specific.

Item C: There is no mention of how to observe the night sky.