This question is based on the following passage. the sentences are numbered to you answer the question.

(1) do you enjoy being out in the fresh air? (2) does nature restore your spirits? (3) you might want to consider hiking as a hobby. (4) it's a hobby you can begin with very little expense. (5) all you need to start is a good pair of hiking shoes.

the first sentence in the paragraph to the main idea of the paragraph.

a. specify
b. introduce
c. explain
d. delay

The correct answer is B. Introduce

Explanation:

The passage presented that included five main sentences mainly aims at persuading the reader to practice hiking as a hobby, to do this the author begins with two rhetorical questions "Do you enjoy being out in the fresh air" and "Does nature restore your spirits?" that is sentence 1 and 2 and mainly help the writer to catch the attention of the reader and provide some context to introduce the main idea of the paragraph before explicitly stating it. Therefore, the first sentence in this paragraph which is the first rhetorical question mainly introduces or provide a context for the main idea of the paragraph.

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d) the narrator even suggested that the white whale, moby d, was ubiquitous and present in every ocean at every moment.