In this section, each item consists of six sentences of a passage. The first and the 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: When a lamb is born its mother may die.
S6: If a means of overcoming this natural tendency is found, the lives of millions of lambs can be saved.
P: Thus there will nearly always be both motherless lambs and sheep without lambs.
Q: However a sheep which has lost its own lamb will not feed or look after a motherless lamb.
R : At the same time some new born lambs are too weak to live.
S: This happens in large flocks where many sheep give birth to lambs at the same time.
The proper sequence should be:

Options

A. A.PQSR
B. B.RPQS
C. C.SRQP
D. D.SRPQ