Answer:
a. The probability of default is zero.
Step-by-step explanation:
A bond is a fixed income security that investors can buy. It can either be a zero-coupon bond which does not pay fixed coupons or a coupon-paying bond which pays coupons . When a bond is held to maturity by the bondholder, YTM(Yield to Maturity) will be the rate of return on an assumption that the probability of defaulting in payments is zero