A: What's the matter with you, young man?
B: Oh, doctor. I'm not feeling well. ____  I think I will die.
A: Die? I don't think so. Take it easy.（放轻松）____ 
B: Ahh... I must have a terrible illness.
A: Em...____ I am sure you will be all right soon.
B: But I really feel very terrible. What should I do now?
A: ____ 
B: Is that all?
A: You should drink more water and you shouldn't eat spicy（辣的）food.
B:____ 
A: No, you needn't

下列为体液免疫图解，请分析判断下列说法正确的是 (     )