R, the sister-in-law of M, is the daughter-in-law of S, who has only two kids, M and N.
A.1 alone is sufficient while 2 alone is not sufficient
B.2 alone is sufficient while 1 alone is not sufficient
C.Either 1 or 2 is sufficient
D.Neither 1 or 2 is sufficient
Answer:A
R, the sister-in-law of M, is the daughter-in-law of S, who has only two kids, M and N.
A.1 alone is sufficient while 2 alone is not sufficient B.2 alone is sufficient while 1 alone is not sufficient C.Either 1 or 2 is sufficient D.Neither 1 or 2 is sufficient