A is the father of B. C is the son of D. E is the brother of A. If B is the sister of C. How D is related to E.
Answer & explanation
Correct answer: option 2
Note:
↑ or ↓ ⇒ Upward or downward line shown "generation gap" .
= ⇒ Double lines shown "relation b/w Husband & Wife"
— ⇒ single line shown "relation between them other than Husband & Wife".

Sister in law, Option B is correct answer.