What theory contends that people have a natural capacity to make decisions about their lives and to control their own behaviors?

Answer;
Humanistic perspective
The theory that contends that people have a natural capacity to make decisions about their lives and to control their own behaviors is known as humanistic perspective.

Explanation;
Humanistic perspective is a theory in psychology that emphasizes empathy and stresses the good in human behavior. In humanistic view, individuals are responsible for their lives and actions and have freedom and will to change their attitudes and behaviors.