What does the reader know about the men of Titusville?

(Ida M Tarbell on Standard Oil)

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.

what does your friend need with?

the correct answer is (d.) gerrymandering. i hope this . : )