An upward-sloping term structure of interest rates indicates:

	the real rate of return is lower for short-term bonds than for long-term bonds.
	there is an indirect relationship between real interest rates and time to maturity.
	there is an indirect relationship between nominal interest rates and time to maturity.
	the nominal rate is declining as the real rate rises as the time to maturity increases.
	the nominal rate is increasing even though the real rate is constant as the time to maturity increases.