1. A bond selling at a discount will have its coupon rate less than its current yield and yield to maturity. The coupon rate will be the lowest of the three.
2. Reinvestment risk is not higher for callable bonds than option-free bonds. Longer maturity bonds have lower reinvestment risk than shorter maturity bonds.
3. For the bond described, with a face value of $100 paying 8% annual coupons over 3 years, the current market value based on arbitrage-free valuation is $100.72.