Where does he usually have lunch

Choose the letter A, B, C or D to answer these following questions

Khang’s uncle is a doctor at a local hospital. Every morning, he gets up at 7.00 and goes to work by motorbike. He usually has breakfast and lunch at work. Sometimes he goes out to have lunch with his friends. His favorite sport is soccer. He often watches soccer on TV. Every Sunday, he plays soccer with some of his friends in the park.

Question: Where does he usually have lunch?