Answer:
d. reduce interest rates to shift aggregate demand right.
Step-by-step explanation:
If the Federal Reserve supports the incumbent, they would want that she wins the election. In order to do so they may want to stimulate the economy.
To do so, they may reduce interest rates. This increases the opportunity cost of saving, and thus people instead of saving, will take their money out and spend it. Which in turns shifts the aggregate demand curve to the right.