P, Q, R and S are four statements. Relation between these statements is as follows.
I. If P is true, then Q must be true.
II. If Q is true, then R must be true.
III. If S is true, then either Q is false or R is false.
Which of the following must be true?
Options B,C and D are given vice-versa to given statements which is not necessarily true.
But according to option A, P is true, then Q and R will be true too but S will be false as for S, either Q or R should be false.
So answer will be A.
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