Direction (Q. 1 - 5): Read the following information carefully and answer the questions give below :
(a) In a family of a six members A, B, C, D, E and F the number of male members is equal to the number of female members. Each member has different profession such as Student, Social Worker, Doctor, Lawyer, Housewife and Bank Clerk. There are two married couples in the family.
(b) C is a doctor and his wife is housewife. D, the student is grandson of E who is housewife. F, the social worker is the sister of D. A, the son of E, is a bank clerk.
Which of the following statements is definitely true ?