Answer:
Tens of thousands of soldiers died on each side of the Civil War, which effected troop strength negatively. The loss of troops is what made the South lose the war that they seemed to be winning. The loss at Gettysburg also hurt morale because the South knew they lost their chance at winning.
Explanation:
The answer is social learning. This theory is made by Albert Bandura. This theory conceives that people gain knowledge from one another, by means of imitation, observation and modeling. The theory has frequently been named a connection between cognitive learning theories and behaviorists since it includes awareness, memory, and enthusiasm.
I would say D) John Maynard Keynes >>> If this is incorrect just inbox me