Final answer:
According to Alfred Adler, the basic characteristic required for psychological well-being is striving for superiority, which is a response to overcoming feelings of inferiority experienced during childhood.
Step-by-step explanation:
One of the basic characteristics required for psychological well-being according to Alfred Adler is C) Striving for superiority. Adler’s theory of individual psychology suggests that a driving force in our lives is the attempt to overcome feelings of inferiority that we experience mainly during childhood. He believed that these feelings of inferiority motivate us to strive for success, excellence, and superiority, thus driving all our thoughts, emotions, and behaviors. Adler's perspective differed significantly from Freud's in that whereas Freud emphasized sexual and aggressive urges as motivating forces, Adler focused on the social dimension of human behavior and the role of feelings of inferiority.