https://www.youtube.com/watch?v=u0_b9hcXvM81. What is the three-step approach for security valuation and how does it apply to bond pricing?2. How does the length of time until maturity for a bond impact the relationship between market rates of interest and bond prices? Explain.3. Which is more sensitive to a change in interest rates, a zero-coupon bond or a 10% coupon bond? Why might this be?4. Would you ever pay more than $1,000 to buy a $1,000 non-convertible zero-coupon bond? Explain.