What Is the Main Difference Between a Demand Shock Stemming

What is the main difference between a demand shock stemming from monetary policy and a demand shock that comes from a change in spending?

A) In the short-run,an autonomous monetary policy easing lowers real interest rates and raises aggregate output whereas a positive spending shock has the opposite effect on both variables.
B) An autonomous monetary policy easing raises inflation permanently whereas a positive spending shock only raises inflation temporarily.
C) An autonomous monetary policy easing has a temporary effect on the real interest rate whereas a positive spending shock has a permanent effect on the real interest rate.
D) all of the above
E) none of the above