<span>President Richard Nixon’s Vietnamization policy focused on gradually withdrawing American combat troops from South Vietnam. President Nixon's plan for the gradual withdrawal of US forces is due to South Vietnamese groups expected to have more combat role. On June 8, 1969, President Nixon declared that 25 thousand U.S troops will be withdrawn by last week of August. Vietnamization aims to improve South Vietnam’s military readiness and infrastructures.</span>
The answer for the question would be A.
IF over land....
They used covered wagons and traveled in trains
IF over sea...
They traveled around the cape horn in the earlier times, and in the later times...
They traveled through the Panama Canal
So the answer to this question is B
A. The command economy is a key feature of any communist society. Cuba, North Korea, and the former Soviet Union are examples of countries that have command economies, while China maintained a command economy for decades before transitioning to a mixed economy that features both communistic and capitalistic elements.