Assume you are a financial consultant who specializes in fixed income investments. You have been recently hired to advise big busuness, Inc., on their bond portfolio. Big Business has three U.S. treasury bonds that they are considering. The company is extremely conservative and wants to minimize all risk.

Bond	Type	Par Value	Cupon	Yield to Maturity	Maturity (years)
A	Zero coupon	$1,000		8%	10
B	Cupon	$1,000	12%	8%	10
C	Cupon	$1,000	5%	8%	10

What bond do you recommend they buy? What bond is the riskiest? You must quantitatively justify your answers.