A, B, C, D, E, F and G are members of a family consisting of four adults, three children, three male and four female. Out of the children, F and G are girls. A and D are brothers and A is a doctor. E is an engineer married to one of the brothers and has two children. B is married to D and G is their child. Who is C?

Option 2 : A's son

Preparing the family tree using the following symbols,

[ alt="Common Diagram 28.01.2020 D3" src="//storage.googleapis.com/tb-img/production/20/12/Common_Diagram_28.01.2020_D3.png" style="width: 208px; height: 280px;">

Given,

1) A, B, C, D, E, F and G are members of a family.

2) consisting of four adults, three children, three male and four female.

3) Out of the children F and G are girls.

4) A and D are brothers and A is a doctor.

5) E is an engineer married to one of the brothers and has two children.

6) B is married to D and G is their child.

Thus,

[ alt="Sourabh Kadam 29112020" src="//storage.googleapis.com/tb-img/production/20/11/Sourabh%20Kadam%2029112020.png" style="width: 500px; height: 314px;">

Here, we see C is the son of A.

Hence, the correct answer is A's son.