Question

The Soviet Union gave the reply of the formation of the North Atlantic Treaty Organization (NATO) in which way.
A. providing the military assistance to the SEATO
B. forming the Warsaw Pact
C. giving financial aid to CENTO
D. joining the Alliance for Progress
E. sending advisers to the OAS

Answer 1

Hint:
USSR’s immediate reaction after the formation of NATO was to form a similar supranational military cooperation organization. It must be for the Eastern counterpart of it.

Complete solution:
The Soviet Union replied after the formation of the North Atlantic Treaty Organization means NATO by forming their own Warsaw Pact.
The Warsaw Pact is meant for the Treaty of Friendship, Cooperation and Mutual Assistance at that time. It was a collective defence treaty signed in the Warsaw city of Poland. It was between the Soviet Union and seven Eastern Bloc satellite states of Central and Eastern Europe in May year 1955. That time was of the Cold War. Actually, this pact was the military complement to the Council for Mutual Economic Assistance.

Additional Information:
During the year 1949, the prospect of further Communist expansion prompted the United States and other eleven Western nations to form NATO.
The Soviet Union and other related Communist nations in Eastern Europe founded the rival alliance. It was in the form of the Warsaw Pact. This alignment into one of the two opposing camps formalized the political division of the European continent. This alignment also had provided the framework for the military standoff which continued throughout the Cold War.

Hence, the correct answer is option B.

Note:
Warsaw Treaty Organization is also called the Warsaw Pact. It is for avoiding the confusion with the World Trade Organization.