Which of the Following Tend to Raise Interest Rates

Which of the following tend to raise interest rates?
I. an increase in the money supply
II. an increase in the expected rate of inflation
III. Federal Reserve actions taken to lower expected rates of inflation
IV. an increase in investing activities by businesses

A) I, II, III only
B) II, III, IV only
C) I, II and IV only
D) I, III, and IV only