In a family of six members A, B, C, D, E, and F, there are two males and four females. A is a doctor, B is a teacher, C is the mother of D, D is the son of E, and F is the sister of A. Who is the male member in the family?
A, B, C, D, and E are five people who play different sports: football, basketball, tennis, cricket, and hockey. A does not play football or basketball. B plays cricket. C does not play hockey. Who plays tennis?