Question

read the paragraph, then choose the word that best completes the sentence.
in 2009, officials sank a 523 - foot - long (160 - meter - long) ship off the florida keys. the vandenberg was first used during world war ii. later, the u.s. navy used the ship to track missiles and spacecraft. officials hope that the sunken ship will become a coral reef. sea creatures will make homes there. they may also attract scuba divers who want to see them. the wreck of the vandenberg should not take long to attract fish. marine life has grown quickly on other wrecks. first, small fish come and then bigger fish arrive to eat the little fish.
the vandenberg makes a(n)______ reef.
a damaged
b artificial
c profitable
d harsh

Explanation:

The ship was intentionally sunk to create a reef. "Artificial" means made by humans rather than occurring naturally. A damaged reef would imply something wrong with it. Profitable means making money, which isn't indicated here. Harsh means severe or unkind, which doesn't fit the context.

Answer:

B. artificial