In this section each item consists of six sentences of a passage. The first and sixth sentences are given in the beginning as S1 and S6. The middle four sentences in each have been jumbled up and labelled P, Q, R and S. You are required to find the proper sequence of the four sentences
S1: The first great discovery that man probably made was that of fire.
S6 : The animals were not clever enough to learn anything from this.
P :Fires sometimes occur by themselves in the forests perhaps by rubbing together of flints or something else.
Q : We light a fire now by a match.
R : In olden times fires were made by striking two flints against each other till a spark came for setting fire to a dry thing.
S : But matches are quite recent things.
The proper sequence should be

Options

A. PR SQ
B. Q SP R
C. P Q SR
D. RP Q S