A is the daughter-in-law of C. B is the son of G. D is the brother-in-law of E. E is the grandmother of F. F is the only son of B. E has no siblings. H is the child of C and is not married. F is married. B has two children. There is no single parent in the family.

Which of the following statements is/are true?

The correct option is A is the sister-in-law of H.

To determine which statement is true, let us break down the family relationships step-by-step based on the given clues:

1. F, B, and E's immediate family:
- F is the only son of B.
- B has two children.
- E is the grandmother of F.
- There is no single parent in the family, which means every parent in the family has a married spouse.

2. Generation and marriage connections:
- E has no siblings.
- D is the brother-in-law of E.
- B is the son of G.
- Since B has two children and F is one of them, B is married to someone, and they have F (a son) and one daughter.
- F is married, so F has a wife.

3. Connecting A, C, H, and the family structure:
- A is the daughter-in-law of C, meaning A is married to a child of C.
- H is the child of C and is not married.
- Since H is unmarried and C is a parent, the married child of C must be B (who is married to A). Thus, A is married to B.
- Therefore, C and G are the grandparents' generation (the couple/parents of B), and A is the wife of B.
- Since H is a child of C and B is also a child of C, H and B are siblings.
- Since A is married to B, A is the sister-in-law of B's sibling, H.

4. Evaluating the option:
- "A is the sister-in-law of H." is definitively true because A is married to H's brother B.