Dr. havine believes the origin of ted's paraphilia relies on components of classical and operant conditioning. dr. havine would be considered a theorist.

The answer to this question is Behavioral theorist
Behavioral theorist tend to believe that all behavior that displayed by individuals are the result of prolonged conditioning.
According to them, every responses that individuals made are directly correlated to the stimuli that we felt around our environment (social or biological).

The correct answer is a. when they started making tools that will them in cultivating lands, they could raise crops and that made them attached to one place for a longer period of time. after that, they started domesticating animals and building their own permanent settlements that resemble the ones we have today.