I'm taking a test and have to guess the right answer to the question after the article. Article: Tony has always loved going to the beach. He spends as much time there as he can. It was a bright, sunny day. The beach was full by the time Tony and his mum got there. It seemed that everyone had the same idea today. When they found a spot , Tony sat down and began to relax. Soon Tony noticed something strange. There was an empty water bottle in the sand. Then, a paper bag was blowing down by the water. People had littered all over the beach! Tony was mad. His mum explained that a lot of people littered instead of using garbage cans . If Tony wanted to stop it, he would have to work to save the beach. He worked hard. Tony got a group to help clean up. He put up signs saying" _ " and got his town to add more garbage cans in the area. Most of all, he let people know how bad littering is for the environment. Tony worked hard to make a difference! Question: Who went to the beach with Tony? Options: A: His best friend. B: His dog. C: His mum. D: Nobody.
The answer to this question is:
C