Answer:
The correct answer is A. The fact that communism was spreading and threatening government stability began to shape the debate over foreign policy in the 1960s. This situation led to the development of the domino theory and the adoption of the Johnson Doctrine as the main foreign policy rule in the United States.
The doctrine meant that the United States of America appropriated the right to carry out armed intervention in the internal affairs of the states of the Western Hemisphere (and subsequently of any countries in the Asia-Pacific region) to protect the interests of its citizens. The doctrine was aimed at preventing the coming to power of communist or socialist parties (even if their coming was done in a democratic way and with the support of the majority of the population of a sovereign country).
Answer:
The battle between the Monitor and Virginia was important because it was the first naval battle where the ships involved used armored plating.
Explanation:
The most traumatic era in the entire history of Roman Catholicism, some have argued, was the period from the middle of the 14th century to the middle of the 16th. This was the time when Protestantism, through its definitive break with Roman Catholicism, arose to take its place on the Christian map. It was also the period during which the Roman Catholic Church, as an entity distinct from other “branches” of Christendom, even of Western Christendom, came into being.
The spectre of many national churches supplanting a unitary Catholic church became a grim reality during the age of the Reformation. What neither heresy nor schism had been able to do before—divide Western Christendom permanently and irreversibly—was done by a movement that confessed a loyalty to the orthodox creeds of Christendom and professed an abhorrence for schism. By the time the Reformation was over, a number of new Christian churches had emerged and the Roman Catholic Church had come to define its place in the new order.
The answer is B. Development of railroad systems.