Read the following article and select the best answer. Article: Do you like children? Do you have free time in the afternoon? We need a babysitter for our son. He's five years old. The working time is Monday to Friday, 3:00 pm to 6:pm. ( $ 5 an hour) We need help with: Looking after our son; Reading to him; Playing with him. You must work at our house. We live in Changchun, near the Culture Square . Please call Mr. Green at 5638--2949. . Question: From Monday to Friday, the babysitter can work _ every day. - one hour - two hours - three hours - four hours
Answer:
three hours