In the following question, there are six sentences marked S1, S6, P, Q, R, S. The positions of S1 and S6 are fixed. You are required to choose one of the four alternatives which would be the most logical sequence of the sentences in the paragraph:

S1: Most people tend to become anxious or nervous before doing something important in public.

(P) The same approach is true for successful speakers.

(Q) However, we must know that only those people who know how to transform their nervousness into excitement or enthusiasm become successful.

(R) For instance, athletes are nervous before a big game. Politicians are nervous to stand in front of a huge gathering.

(S) And actors also are nervous to face the camera and deliver the dialogues.

S6: Hence, becoming nervous before a speech or presentation is natural, normal and sometimes even desirable.