As a result of fears regarding the cold war, many americans urged congress to a. declare war on the soviet union. b. built bomb shelters in their backyards. c. supported senator mccarthy well into the 1960s. d. voted for harry truman in the election of 1952.

Option B.

Explanation:

Built bomb shelters in their backyards, is the right answer.

The geopolitical tension that emerged between the United States and the Soviet Union after the Second World War is known as the Cold War. The term "Cold" for War, is used to describe a war in which no large-scale fighting took place between the two sides, however, they both supported influential territorial disputes perceived as proxy wars. It was during the course of Cold War that many people felt the fear thus they urged the Congress of the United States to built bomb shelters in their lawns.