The following table summarizes prices of various default-free zero-coupon bonds ($100 face value):

Maturity (years)	1	2	3	4	5
Price (per $100 face value)	$95.56	$91.05	$86.46	$81.68	$76.57

a. Compute the yield to maturity for each bond.

b. Plot the zero-coupon yield curve (for the first five years).

c. Is the yield curve upward sloping, downward sloping, or flat?

Note: Assume annual compounding.