Which of the Following Statements Is True

Which of the following statements is true?

A) Downward sloping yield curves typically appear in the early to mid-period of a business expansion.
B) Interest rate risk always provides an upward bias to the slope of the yield curve.
C) If investors believe that inflation will be increasing in the near future, the yield curve will be downward sloping.
D) Downward or inverted yield curves are the type most commonly observed.