Which of the following sentences is **NOT** related to the picture?
[Scene: A group of teenagers sitting in a circle in a park. One of them is playing a guitar. Others are singing and clapping. There are snacks and drinks on a blanket.]
A)They are having a good time together.
B)One of them is playing a musical instrument.
C)They are studying for their exams.
D)They are eating and drinking.