Answer: A. It could undermine confidence in the Fed and impact market conditions.
Step-by-step explanation:
Independent Central banks are preferred as they keep market conditions stable by controlling inflation and affecting interest rates. For instance, Independent central banks have generally been favored by investors due to studies showing that they keep inflation rates low as opposed to countries where the Central bank is controlled by the government.
Investors like this as it reduces the erosion on their rates of return by inflation. If there is any indication that the Fed is no longer independence or less independent, market conditions might be affected as investors become worried about inflation amongst others and the market responds by raising interest rates to compensate.