The Brelands concluded that animals' strong instinctive behaviors predominated over behaviors that had been conditioned, which they described as a. instinctive drift. b. inconclusive conditioning. c. behavioral reversion. d. the self-intrinsic effect.

The Brelands concluded that animals' strong instinctive behaviors predominated over behaviors that had been conditioned, which they described as "instinctive drift".

Answer: Option A

Explanation:

Keller and Marian Breland coined instinctive drift. Instinctive drift, also known as instinctual drift, is an animal's desire to return to unconscious and habitual actions that interacts with acquired operant conditioning behaviours.

This finding demolished the once believed ideas that before deliberate training, animals are a "tabula rasa," and that all reactions are similarly conditionable. The Breland's characterized the first visibility to this concept when they worked with their chickens who were instructed to appear as if they were moving on a jukebox and dancing afterwards.