article: Betty is my good friend. She comes from England, but now she lives in Beijing with her parents. We are in the same class, so we often go to school and have lunch together . We usually have lunch at school. We often eat vegetables,  fish and rice for lunch. Betty's favorite food is jiaozi. She says Chinese food is very nice. She likes it very much. My favorite food is hamburger. But my parents don't think it's good and healthy, so I can't eat it often.
question: What is Betty?
options: A teacher. An office worker. A student. A doctor