Which of These Statements Best Describes the Possible Effect of Efforts

Which of these statements best describes the possible effect of efforts by the Federal Reserve Board to lower interest rates?

A) They can lead to lower capital gains tax rates.
B) They can lead to higher unemployment in years of budget deficits.
C) They can spur economic growth by increasing the cost of money for business.-
D) They can spur economic growth by increasing the available money supply.