Why is the term structure of interest rates helpful to investors? a. The term structure of interest rates helps investors in the decision to buy short- or long-term bonds. b. The term structure of interest rates helps investors to understand the rate of inflation. c. The term structure of interest rates helps investors to understand corporate structure. d. The term structure of interest rates helps investors to influence political lobbyists. e. The term structure of interest rates helps investors to invest in private businesses.