Step 1: Concept
Logical deduction based on family constraints and roles.
Step 2: Analysis
- E is female and has a son who is a lawyer.
- Lawyer's wife is A (Teacher).
- Family has 3 males, 2 females. Females: E, A. Males: B, C, D.
- Eldest is D, youngest is C.
- To have 2 fathers and 2 sons: Grandfather (D), Father (B), Son (C).
Step 3: Mapping
- D (eldest male) is the father of B (lawyer).
- B is the husband of A.
- E is the wife of D.
Step 4: Conclusion
D is the husband of E.
Final Answer: (1)