Suppose you purchase a 10 -year, $1000 face value, zero-coupon bond with a yield to maturity of 7%. You hold the bond for one year before selling it. a. If the bond's yield to maturity is 7% when you sell it, what is the return of your investment? b. If the bond's yield to maturity is 8% when you sell it, what is the return of your investment? c. If the bond's yield to maturity is 6% when you sell it, what is the return of your investment? d. Even if a bond has no chance of default, is your investment risk free if you plan to sell it before it matures? Explain. Note: Assume annual compounding. a. If the bond's yield to maturity is 7% when you sell it, what is the rate of return of your investment? The return of your investment if the bond's yield to maturity is 7% when you sell it is %. (Round to two decimal places.) b. If the bond's yield to maturity is 8% when you sell it, what is the return of your investment? The return of your investment if the bond's yield to maturity is 8% when you sell it is %. (Round to two decimal places.) c. If the bond's yield to maturity is 6% when you sell it, what is the return of your investment