A $1000 face value, 8 % coupon annual pay bond is issued on February 28 at par. The first coupon will be paid on February 28 of the next year. The bond is quoted on each of the following dates at the clean prices noted:

31 May at $1080

31 July at $1110

Calculate the accrued interest on the bond on 31 May; accrued interest on 31 July, dirty price on the bond 31 May and the dirty price on 31 July.

a) 40, 66.67, 1100, 1143.33

b) 20,33.33,1100, 1143.33

c) 20,33.33, 1120, 1176.67

d) 40,66.67,1120, 1143.33