There is a family of six members A, B, C, D, E and F. They are lawyer, doctor, teacher, salesman, engineer and accountant not necessarily in that order. There are two married couples in the family. D, the salesman, is married to the lady teacher. The doctor is married to the lawyer. F, the accountant, is the son of B and brother of E. C, the Lawyer, is the daughter-in-la.w of A. E is the unmarried engineer. A is ihe grandmother of F.
How is E related to F?

Options

A. a. Brother
B. b. Sister
C. c. Cousin
D. d. None of these

Answer

D

Explanation

As it is not clear that E is male or female so we cannot conclude that E is brother or sister of F.