As a child, Brett always had a lot of energy at his parent’s social gatherings. As an adult, he makes a point to talk to everyone attending a party. This is an example of

heterotypic continuity

Explanation:

According to the given situation. It is mentioned in the question that Brett has a lot of energy for the social gatherings and at the time of adult he makes a point for talking.

This determines that he has different behaviors at different ages

Therefore in the given case, it is a case of heterotypic continuity and the same is to be considered

c. reserves power to the states and people