General butler's justification for the union army using freed blacks to do manual labor

General Butlers justification was that the freed slaves were contraband.

Explanation:

true is the answer to this

john maynard keynes developed new economic theories in response to the : b) great depression of the 1930s. his theories are so important that they are known as "keynesianism". in his works he supports the idea of a government with deeper involvement and intervention to end the great depression.