Which characteristic best describes the Treasury yield curve?

Select one:

a. The curve normally begins flat and steepens to the right

b. Coordinates of the yield curve are term to maturity on the horizontal axis and interest rate on the vertical axis

c. The curve normally begins with a flat slope that becomes negative to the right

d. Coordinates of the yield curve are yield to maturity on the horizontal axis and term to maturity on the vertical axis

e. The curve depicts the spread between corporate bonds and Treasury bonds