Northern places like Canada were colonized by France. The mid part was at first colonized by the Dutch but then the colonies were taken by the British. The central American part, including South America and the Carribean was mostly controlled by the Spanish. Portugal had control of Brazil while Russians started slowly moving towards Alaska but couldn't establish colonies until the 18th century.
I believe it is B, but I know for sure it is not A, I can try and leave some links for you to get more info on it
the us military was deployed in europe