Dear Grace,Let me tell you something about my family. My grandfather is 80 years old. He doesn’t work any more. Before he retired, he was a teacher. Both my parents work now. My father works in a hospital. He is a very good doctor. My mother works in the same hospital, but she is a nurse. Sometimes she works at night. I have a brother and a sister. My brother works at a computer company in our city. His dream is to be а software engineer (软件工程师). My sister is also a computer fan, but she doesn’t want to work for anybody. She wants to have her own computer company. Now she is a student of Beijing University, studying physics. You know what my life is like. I have so many courses to learn every day. I like English, but not history. Usually I study hard. In my spare time, I surf the Internet to get some information. I also hope to work for Microsoft as a software engineer someday. How many people are there in you family? What do they do? Please write to me. Love, JakeThere are ___________ people in Jake’s family.
选项：

A: Six
B: Five
C: Four
D: Three