Which of the following best characterizes the Risk Structure of interest rates?

		It examines how interest rates change for bonds with similar terms to maturity but varying levels of credit default risk
		It examines how interest rates change for bonds with similar levels of credit default risk, but varying terms to maturity
		It examines how Interest Rate Risk varies for bonds with different terms to maturity and coupon rates
		It examines the credit spread between interest rates and risk free rates of return
		It examines the risk to investors the inflation poses to their purchasing power