(a) ANSWER A 3-year zero coupon bond selling at $900 and yielding 12.18 percent has a duration of a. 3 years. b. 2.78 years. c. 2.50 years. d. 2 years. (a)ANSWER : A $1000 2-year 10% coupon bond is priced at $1000 in the market. The duration is a. less than two years. b. more than two years. c. 10%. d. 2 years. I'VE PROVIDED THE CORERCT ANSWERS I JUST WANT YOU TO WALK ME THROUGH IT HOW THEY GOT THIS EITHER STEP BY STEP OR CALCULATOR KEYS