A: Firsdy, allow me to introduce myself. My name is John Brown, manager of the company. B: ______.
A.You must be mistaken. I don"t know you at all
B.Hello, Brown" I haven"t seen you for ages
C.How do you do, Mr. Brown? Very happy to see you.
D.Hi, John! Welcome to China!
请帮忙给出正确答案和分析,谢谢!