The best answer is, A. The United States' interests in Latin America have often led to intervention.
For decades the United States has pursued a foreign policy agenda of democracy building, this is especially present in developing countries such as those in Latin America, Africa, and the Middle East. When the United States has been unsuccessful in influencing the political structure to its benefit through diplomatic means it often turns to military and revolutionary means. The headlines reinforce this foreign policy agenda which has played out in many Latin American countries.
Helps maintain strength and flexibility
The delivering of weapons, food, and medical supplies to the American troops in Europe was not the easiest thing to do. The European Theater was in chaos, and danger lurked everywhere, so delivering anything to any spot was anything but safe, as a surprise attack was always a possibility. Also, the Atlantic Ocean needed to be crosses, and ti is the second largest body of water on the planet, so it was a long way to go, and plus not cheap at all. The troops were constantly on the move, so that also represented problem, as they were getting more and more into the interior of the continent, so apart from having to deliver things further away, the danger was also increasing as the enemy lines were always close.