Describe the effect of each action below will have on the money supply. Explain your reasoning

A. The fed raises the discount rate from 5% to 10%
B. The required reserve ratio is lowered from 20% to 10%
C. The fed sells $5 billion worth of T-bonds on the open market
D. The fed buys $5 billion worth of T-bonds on the open market
E. Banks decide to keep more of their assets as reserves in order to avoid risking a shortage of the required reserve

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explanation:

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no options provided, here,but the answer to this question is often: a historian cites a japanese newspaper article published a year after the end of world war ii in order to draw conclusions about the effect of the war on the japanese economy.

clearly from the answer, the historian alludes to historical sources,and records to aid in analyzing and drawing conclusion on the effect of the war on the economy of japan.