The positive modification and redirection of primal urges is termed Group of answer choicesreward.contraindication.sublimation.behavioral reinforcement

The positive modification and redirection of primal urges is best described by the term sublimation.

Explanation:

Sublimation is a psychological defense mechanism identified by Sigmund Freud, where individuals transform unacceptable or socially undesirable urges into socially acceptable actions. For instance, someone with aggressive impulses might take up a sport where they can channel that energy productively, thus redirecting their primal urges into constructive outcomes. This process is considered positive and healthy, allowing individuals to lead more balanced lives.

In contrast, terms like "reward" and "behavioral reinforcement" relate more to operant conditioning, while "contraindication" typically refers to a situation or condition that serves as a reason to withhold a certain treatment or procedure, particularly in medicine. Thus, "sublimation" is the most fitting choice in this context.