Dr. Mendez has always followed the works of psychologist William McDougall. Like McDougall, Dr. Mendez believes that people are born with predetermined sets of behaviors, which help them survive. Dr. Mendez is most likely a proponent of:

Dr. Mendez is most likely a proponent of Instinct theory of Motivation. This theory states that, all organisms are born with innate biological tendencies that help them survive.

Example is the infants have an inborn rooting reflex that helps them seek out a nipple and obtain nourishment from thier mother. This behaviour is already predetermined in the new born babies hence their actions.

Explanation:

b. the american revolution