The general structure of a string quartet is:
Violin I
Violin II
Viola
Cello
The Violin I plays the Soprano parts, the Violin II plays the Alto parts, the Viola plays the Tenor parts, and the Cello plays the Bass parts. The two most important parts of a string quartet are the Violin I and Cello. The Violin I and the Cello the melody plays the counterpoint, while the Violin II and Viola parts are filler parts that are there to make the piece sound nicer.
Answer: you should use the topic: a scene featuring 2 characters sitting on the edge of a bridge
because: you could choose to make it a happy scene or a depressing scene or you can add two of the choices together and have two people together on a bridge and one is proposing to the other which may give you extra credit (depends on the teacher)
