The word that comes in the blank is "behaviorism".
Behaviorism refers to a learning theory that exclusively spotlights on equitably behaviors that are observable and rebates any free exercises of the psyche or mind. Behavior scholars characterize learning as just the securing of new conduct in view of ecological conditions.
Answer:
More, had a comparative advantage, produce more
Explanation:
In the previous example, the United States and Brazil were efficient when they specialized. Brazil choose to specialize in the production of bananas because it in producing it. The United States and Brazil when they specialize.
I believe it’s D but I have to type 20 characters so….