Markus and Phoebe, longtime rivals on the high school
debate team, are stranded on a desert island. Tempers
flare and they get into many shouting matches. Eventually,
they learn to work together and a build a raft that allows
them to escape.
What there is suggested by the story's setting

A. The importance of building friendships


B. The importance of building trust
C. The need to work together to survive
D. The destructive force of rivalries