Correct answer choice is :
A) Businesses struggled to replace skilled workers killed or severely injured in the fighting.
Step-by-step explanation:
From 1915 the US got tons of loans to the UK to support them in their war effort. It is not a range to say that WWI was the significant factor in providing to the Roaring 20s when the US economy expanded. The long-term outcome was that US engagement in the warheads straight to the Great Depression and WWII.