pyq/2019/csat/58

Consider two statements S1 and S2 followed by a question:

S1: p and q both are prime numbers.

S2: p + q is an odd integer.

Question: Is pq an odd integer?

(A) S1 alone is sufficient to answer the question

(B) S2 alone is sufficient to answer the question

(C) Both S1 and S2 taken together are not sufficient to answer the question

(D) Both S1 and S2 are necessary to answer the question