FRM NOtes 里一道习题，请问如何做债券套利？

there are 3 bonds. bons A,maturity=1year,YTM=4%,coupon(annual payment)=0,price=96.154 ..bonB,maturity=2years.|YTM=8%,coupon=0,price=85.734,Bons C,maturity 2 years,YTM=8%,coupoun(annual payment)=8%,pri