Respuesta :
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.