OFFICIAL EXPLANATION
Step 1: Identify the Question TypeWhenever we are asked to make a deduction based on the stimulus, we have an Inference question.
Step 2: Untangle the StimulusThe stimulus for an Inference question will typically not be an argument. Instead of looking for
evidence and conclusion, we simply take the statements in the stimulus at face value and paraphrase
them to make sure we understand the situation they describe. Here we’re told that conservation
efforts have stopped the decline of wild tigers in India, the number of which decreased from 40,000
in 1900 to 2,000 in 1970. Moreover, while tigers are still endangered in India, that country is nonetheless
the wild tiger’s best chance for survival.
Step 3: Predict the AnswerThe answer to an Inference question is often difficult to predict because there are any number of
deductions we might make from the stimulus. Instead, we must go through the answer choices,
carefully checking each against the information in the stimulus, until we find the one that must
be true based only on the information we are given.
Step 4: Evaluate the Choices(A) cannot be the correct answer because the stimulus mentions nothing about the number of wild
tigers existing in India at the present time; we only have numbers for 1900 and 1970. (B) is also
incorrect because it mentions the number of tigers living outside India, about which we have no
information. We cannot glean an inference this precise from this stimulus. For example, it’s possible
that Malaysia and Thailand each have 900 wild tigers, but it’s also possible that Thailand has
3,000 but is losing 500 a year. We can’t infer the statement in (B) without bringing in imagined
outside information. (C) is too extreme. The stimulus does say that India is the best chance of the
wild tiger’s survival, but it does not go so far as to say that India is the tiger’s only hope. Perhaps
there is another location where tigers could survive in the wild, and failing that, perhaps they could
be bred at zoos. (D) is incorrect because the stimulus gives us no information about tigers raised in
captivity. By process of elimination, (E) must be the right answer. Indeed, the stimulus tells us that
the wild tiger’s best chance of survival is in India, even though it is endangered there. It follows
that it must be endangered elsewhere as well. Because choice (E) states a deduction we can draw
from the stimulus, it is correct.