Read the sentence.
In 1942, millions of Americans joined different groups to take part in the war.
Which revision best improves the sentence by including vivid details?
In 1942, millions of Americans joined the military to take part in the war.
In 1942, millions of Americans enlisted in different groups to take part in the war.
In 1942, millions of Americans joined the military to battle overseas.
In 1942, millions of Americans enlisted in the military to battle in Europe and the Pacific.