What character was used to make an atom bomb attack seem less dangerous

Bert the Turtle-Duck and Cover

The character was Bert the turtle.

Explanation:

Federal Civil Defense proposed an advertising campaing in 1952 called "Duck and Cover". The main character was the heroic Bert the turtle whose function in that educational/propaganda cartoon was to make an atomic bomb attack seem safer than it really was.

your answer will be b. improving roads, bridges, and other infrastructure. hope i !

your answer would be (b)