How and why?

On September 1, 2012, an investor purchases a $10,000 par T-bond that matures in 12 years. The coupon rate is 6 percent and the investor buys the bond 70 days after the last coupon payment (110 days before the next). The ask yield is 7 percent. The dirty price of the bond is 49) A) $9,313.75. B) $9,333.24. C) $9,300.55. D) $9,321.82. E) $9,295.45.