All the points stem from a regulatory change in the market that changes the holding power of money.
Step-by-step explanation:
a. The change affects the demand for money in the way that more in the economy people will be willing to hold money to themselves increasing the demand.
b. velocity of money will stagnate as people will begin to hoard it and not circulate it.
c. If the Fed keeps the supply constant, due to the high demand the output will be less and the demand will be high, however in the long term the curve will flatten out with marginally higher prices as the hoarding would stop.
d. Yes, the fed should make the supply constant to flatten out the curve as said in c.
e. The stabilization of output would require more cash flow to make the flow of money as constant as it was before.