24. Billy: Hi, Charles. How are you doing? Dave: Alright, I guess. The operation went well though the wound is still painful. Billy: _____________ So great to hear that. Dave: Doctors will do more tests and further check-up tomorrow. If the results are O.K., I should be able to go home soon. (A) What’s the difference? (B) What a coincidence! (C) What a relief! (D) What a shame!