Read the following context and choose the best option to answer the question.
Context: Unlike outside and backstage , it was cool in the bus . He mentally thanked their bus driver for switching on the airco this morning as he made his way to the living room area . He flopped down on the large , brown sofa and closed his eyes , sighing again .
Question: What is probably true about the people on the bus ?
Options: 
- They are moving a brown sofa .
 - They collectively play music .
 - None of the above choices .
 - They are training to be bus drivers .


They collectively play music .