According to the passage, which of the following is the best set of reasons for which one needs to "look hard" at an economist's language?
(I) Economists accomplish a great deal through their language.
(II) Economics is an opinion-based subject.
(III) Economics has a great impact on other's lives.
(IV) Economics is damging.
I and III
In the last paragraph, the author says, “Unfortunately, though, the conclusions are of more than academic interest. The conversations of classicists or of astronomers rarely affect the lives of other people. Those of economists do so, on a large scale”. This makes statements (I) and (IV) true.
In the 1st line of the 3rd paragraph, the author states that economics is not just a matter of opinion as also stated in statement (II). Hence, options (a) and (d) can be rejected.
According to the last line of the last paragraph, economics is not damaging, but economists and their conversations are, and therefore (IV) becomes untrue, eliminating option (b).
Hence, the correct answer is option (c).