B T om had got a summer job. He worked in a park every morning. he usually greeted the visitors at a gate, he answered their questions and gave them a map of the park. In the afternoon, he helped to sell gifts in the park. He was busy, but he enjoyed his job. Tom had a friend. Her name was Han Limei. She was nineteen years old. She came from Zunyi, Guizhou Province. She was a shop assistant now. She wanted to be a secretary in an IT company. How old is Tom’s friend? ( ) A . 17 B. 18 C. 19 D. 20