For each of the following pairs of Treasury securities​ (each with $ 1 comma 000 par​ value), identify which will have the higher​ price: a. A​ three-year zero-coupon bond or a​ five-year zero-coupon​ bond? b. A​ three-year zero-coupon bond or a​ three-year 4 % coupon​ bond? c. A​ two-year 5 % coupon bond or a​ two-year 6 % coupon​ bond?