The first line (S1) is fixed. Arrange the other four lines P, Q, R and S in a logical sequence.
The passage starts off by saying that the beginning of the universe has long been a topic of discussion. This will ideally be followed by statement R, which mentions one theory: that the start of the universe was at a definite point in time. This is supported by the reasoning in statement P where it is said that a "first cause" explains the universe’s existence. Then statements S and Q put forth another theory by St. Augustine and elaborate upon it. The pronoun "He" in statement Q is for St. Augustine in the statement S. So, SQ is mandatory pair.
The correct sequence is RPSQ.
The correct option is B.