Answer:
(A)This is an example of a decrease in Robert's DECREASE demand for money
(B)As the interest ate falls, the opportunity cost of holding money DECREASE, and people DECREASE their financial assets in the form of money.
Explanation:
(A)
The Demand decrease because their currency requirement for predictalbe expenses decrease, his rent is lower. He can now invest something extra in his investment.
(B)
If the rate decrease, the cost of having money decrease, because the opoprtunity of having the currency in the bank yielding an interest gives lower return. This make people leave their currency assets and move into others which a better return