Where is Nam living

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

Nam is living in Hanoi city with her family. She is in grade 6. In summer, she doesn’t go to school. Because the weather is very hot, she often goes swimming with some of her friends. She sometimes goes to the park to fly the kite or goes fishing. She also goes on vacation with her family. Her favorite place is Ha Long. Nam likes summer very much.

Question: Where is Nam living?