International trade A. must benefit both countries exactly the same amount
B. limits a nation's ability to produce goods and services on its own.
C. allows a nation to consume at a point outside its production possibilities frontier.
D. is based on absolute advantage.​

It's A if anyone is wondering

the answer to the question is punishment. or more specifically, positive punishment.

positive punishment occurs when a behavior is given a negative consequence for the individual doing the behavior.

sara no longer wants to ask questions (the behavior) because she is ridiculed by mr. smith (the punishment).

reinforcement is inaccurate because reinforcement always gives positive consequences for the individual doing the behavior, be it by introducing a pleasant consequence or removing an unpleasant one.

bruh why?

explanation:

but lol