When the U. S. military was integrated, many people expected it to be a disaster. In fact, integration of the military was hugely successful. In terms of social psychology, a major reason for this success was most likely that black soldiers and white soldiers:

Answers: A.
cooperated on important common goals.

B.
had to live and work together full-time.

C.
were removed from their original environments

D.
were penalized for not working together smoothly.