In the spring of 1942 Doolittle's Raid occurred. The most important impact of this raid was a
b
It showed that the Japanese mainland could not be attacked.
It sunk two Japanese aircraft carriers.
It was an important military strike against Nagasaki.
It lifted Americans' sunken spirits.

It lifted Americans sunken spirits

Explanation:

Because the raid was the first american raid on the Japanese mainland and showed that the Japanese are not invincible

because he created electricity

1

b gas tractor

2

c and negotiated lower prices for farm equipment and supplies

3

d the grange

4

c over 15,000 bankrupt businesses

5

c people became more self-sufficient