The correct answer is: A. PQRS
The sentence is about the importance of fear and how it can be both beneficial and harmful. The first sentence, “Of course, it is silly to try to overcome fears that keep us from destroying ourselves,” establishes the main point of the paragraph: that some fears are necessary for our safety. The second sentence, “You need some fears to keep you from doing foolish things,” provides an example of a beneficial fear: the fear of being hit by a car. The third sentence, “You are afraid of an automobile coming rapidly down the street you wish to cross,” is a continuation of the example. The fourth sentence, “This is sensible,” is a transition sentence that leads into the next paragraph. The fifth sentence, “You wait until it is out of the way before crossing,” is an example of how the fear of being hit by a car can prevent us from doing foolish things. The sixth sentence, “The only fears you need to avoid are silly fears which prevent you from doing what you should do,” concludes the paragraph by restating the main point.
The other options are incorrect because they do not follow the logical order of the sentences. Option B, PRSQ, puts the example of the fear of being hit by a car before the sentence that establishes the main point. Option C, RPSQ, puts the sentence that concludes the paragraph before the sentence that establishes the main point. Option D, RSQP, puts the sentence that provides an example of a beneficial fear after the sentence that concludes the paragraph.