Ask internet this ... hope you get the answer ;)
Answer:
d) All of these were not true
Explanation:
All the options above were all questioned by the Brelands. Instinctive drift as coined by Keller and Marian Breland who were former students of B. F skinner, asserted that operant conditioning theory wasn't true after their work on instinctive drift. Instinctive drift, a direct opposition to the operation conditioning theory of Skinner since an animal could still revert to unconscious behaviour after learning under operant conditioning.
You could try the word “apparent” - it’s a synonym to evident and definitely fits in the second blank. If all else fails, search up “synonyms to evident” and choose as you like. I hope this helps :)
Martin luther king was:
• strong
• magnificent
• intelligent
• respectful
• peaceful
• provided justice to society