Explanation:

- F is the grandfather of G, making F part of the oldest generation.

- G is the child of D, indicating that D is a parent to G.

- A is a parent to G as well, being in a relationship with D.

- B and D are siblings, making them members of the same generation.

- E is the only son of F, meaning he is also a sibling to both B and D.

- H is the only grandson of F, which means H is a sibling or cousin to G.

- C is married to B, making C a part of the same generation as D and B.

- G is the child of D, so G is a cousin to H.

- P is the spouse of F, meaning P is from the oldest generation along with F.

With these relationships, P is the mother of B. Thus, the correct option is:

- Correct Answer: 3 - Mother