A U. S. investor who purchases an option-f
题型：单项选择题
问题：
A U. S. investor who purchases an option-free bond with a 7 percent coupon rate, maturing in 20 years, and issued by a U. S. -based company is most likely exposed to:()
A. volatility risk and credit risk.
B. event risk and interest rate risk.
C. volatility risk and yield curve risk.