Porshi lives in Kushtia. She goes to Chechua Government Primary School. She is in class three. There are some student groups in the school. Every group includes students of classes 3, 4 and 5. A teacher leads a group. The Headteacher also leads a group and supervises others. Every Thursday, the groups clean the school by turns. They clean the play ground, wash block, classrooms, the garden, etc. They always use bins. Student help each other. Porshi joins one of the groups and enjoys the following cleaning activities.

Choose the best answer from the following alternatives and write them in your answer script.