'A', 'B', 'C', 'D' and 'E' are members of the same family. There are 2 fathers, 2 sons and 2 wives in the family. 3 of the family members are males and 2 are females. A is a teacher. The teacher is the wife of lawyer. The lawyer is the son of E. C is the youngest person in the family while D is the eldest. E is a female and B is a male. How is 'D' related to 'E'?