单项选择题

Questions 17—20 are based on a conversation between Dr. Frances and Li Ping about Li Ping’s planned visit to Cambridge. You now have 20 seconds to read Questions 17—20.
What is Dr. Frances

A.She is a teacher of English in Cambridge.
B.She is a specialist in computer science.
C.She is a consultant to a Scottish company.
D.She is a British tourist to China.