Answer:
Dr. Mendez is most likely a proponent of<u> Instinct theory of Motivation</u>. <em>This theory states that, all organisms are born with innate biological tendencies that help them survive.</em>
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:
Civil issues are how they do it.
Tiber river they used it for trading