Answer: e. The market price of a bond will always approach its par value as its maturity date approaches, provided the bond's required return remains constant.
Step-by-step explanation:
The Phenomenon described in option E is known as the PULL TO PAR.
It is the tendency of a bond's price to move towards it's face/ par value as it nears maturity because that is the price that the company will pay the bondholders on maturity.
This means that for example, Premium bonds ( bonds trading at a price higher than their par value) will continually drop until they get to the par value and Discount Bonds (bonds trading at a price lower than their par value) will continually rise until they get to the par value.
This is all dependent however, on a CONSTANT Required Rate of Return.