Official Explanation
1. The primary purpose of the passage is to
Explanation
The subject of the question is the passage as a whole and the task of the question is referenced by the phrase primary purpose, so this is a primary purpose question. Determine why the author wrote the passage by using the key sentences approach.
The key sentence of the first paragraph is the introduction to the topic of the article, which is a critical aspect of product advertising is the choice between positive and negative approaches.
The second paragraph discusses the benefits and risks of both positive and negative advertising and concludes consumers may thus more readily believe negative information compared to arguments made in favor of a brand or product, and the former often makes a stronger mental impression.
The third paragraph explains why such advertising can be more memorable: negativity bias. The final paragraph sums up the final conclusion of the passage by stating In spite of these benefits, negativity in advertising is not always more effective than the alternative.
Evaluate the answer choices individually, looking for one that reflects the primary purpose of the passage.
Choice (A) uses the extreme language argue the inferiority. The passage does not argue for inferiority of one approach to another, but instead lays out the benefits and risks of each. Eliminate (A).
Choice (B) is a memory trap. The passage does explore the advantages of different forms of advertising, but it also explores the risks, and the primary purpose is not concerned with different audiences. Eliminate (B).
Choice (C) is a good paraphrase of the information in the passage, so keep (C).
Choice (D) is a memory trap as the passage does spend some time explaining what makes negative advertising effective, but this is the subject of only one paragraph and not the primary purpose of the passage. Eliminate (D).
Choice (E) is an appeal to outside knowledge. It is true that there is a need for companies to advertise their products, but the passage is unconcerned with this need. Eliminate (E).
The correct answer is (C).