What determines the sex of a child in humans?

Correct option is D

The correct answer is option (d) Genetic constitution.

Information booster :

The sex of the child is determined by the combination of sex chromosomes:

• If the child inherits an X chromosome from the father and an X chromosome from the mother, the child will be female (XX).
• If the child inherits a Y chromosome from the father and an X chromosome from the mother, the child will be male (XY).