why are those the correct answers

A risk-free, zero-coupon bond with a $5,000 face value has 20 years to maturity. The bond currently trades at $4,340. What is the yield to maturity of this bond? A. 56.6% B. 0.71% C. 86.8% D. 0.355% Cooperton Mining just paid a dividend of $2.32 yesterday (Year 0 ). Cooperton's dividends are expected to grow at a 4.6% rate for the next two years (Year 1 and Year 2). After Year 2, dividends are expected to grow at a 3.4% rate in perpetuity. If Cooperton's cost of equity is 10%, what is its stock price? Cooperton's stock price is $ (Round to the nearest cent.)