A full understanding of gender constancy occurs by which age?

A) 3
B) 5
C) 7
D) 9

A full understanding of gender constancy occurs by the age of 7. This means that children are able to understand that their gender is a stable aspect of their identity that does not change even if they engage in activities or behaviors that are typically associated with the opposite gender. Prior to this age, children may not fully grasp the concept of gender constancy and may believe that gender is determined by superficial characteristics such as clothing or toys.