Explanation:
A warm front is indicated on the line by red semi-circles pointing away from the warmer air and pointing in the direction towards which the warm air is moving. Along sections of the polar front, cold and warm air masses may move differentially with for one another.
The USA generally tried to remain neutral during the beginning of world War 1. therefore, i think the correct answer would be C, to remain military and politically neutral. hope this helps you
Ir is the third opinion, 100km area