Patient : Doctor, doctor! Come and see, why do you think I always have a chest pain after the operation? (fell very aggrieved as well as anxious) Doctor Chen: Don’t shout! Your chest has a wound, how can it not hurt? Patient: The patient in bed 5 has had the same operation as me on the same day. I can’t understand why he doesn't have pain. I guess there's something wrong with the operation operated by you? (showing dissatisfaction) Doctor Chen: It must be ok if I say it’s OK. I am a doctor but are you a doctor? Patient: I think there's something wrong with your operation. Wait, I'm going to the medical department to sue you! (very angry) What kind of communication does this case belong to A、crossed communication B、 complementary communication C、hidden communication D、written communication