单项选择题

Questions 1 to 3 are based on the following conversation. At the end of the conversation, you will be given 15 seconds to answer the questions.
According to the conversation, what’s the character of Tom

A.He is a newcomer in the company.
B.He is a leader to visit the company.
C.He is the boss of the company.
D.He is the CEO of the company.