Answer: Option B
:
B
The correct answer to this question will be a claim that must follow from text contained in the passage. This question does not provide any clues as to where the justifying text will be found.
(A) The first paragraph mentions that the Javan rhino is the most endangered species of large mammal. However, it does not have to be true that it is one of the most endangered animals, a category that is far broader than mammals.
(B) CORRECT. The first paragraph states that very little is known about the life of the Javan rhino. The passage does indicate, however, that scientists have been able to extract information on the species’ DNA from gathered dung. The paragraph also suggests that very little information about female Javan rhinos has been gained, given that scientists only recently discovered whether or not females of the species even have horns. Thus, one can infer that more is known about the genetics of the Javan rhino than its mating patterns.
(C) The passage only discusses the Javan rhino; therefore, a generalization about the extinction of "most animals" is not supported by the passage.
(D) The passage does not mention other survival factors for a species or rank them; therefore, this inference is not supported by the passage.