The Cold War was a conflict between . A.
Europe and Russia
B.
China and the Soviet Union
C.
the United States and Europe
D.
the United States and the Soviet Union

FIRST PERSON TO ANSWER (with no links) GETS BRAINLIEST!!

OOh this is what we are doing right now ok so the answer would be, D.

Explanation:

this null effect is caused by a weak manipulation and ineffective internal validity. in a scientific study, as the one dr. morimoto is trying to perfom, internal validity refers to the confidence placed in the cause-effect relationship and to how well an experiment is done and able to eliminate confounding variables.        

good question. i'll be looking into that. (this is a joke sir)