Assume the following returns and yields: U.S. T-bill = 8%, 5-year U.S. T-note = 7%, IBM common stock = 15%, IBM AAA Corporate Bond = 12% and 10-year U.S. T-bond = 6%. Based on this information, the shape of the yield curve is ________.

Select one:

a. upward sloping

b. normal

c. flat

d. downward sloping