User blog comment:ArtDraw12/Total Drama Horror 4 - Episode 2/@comment-11883116-20170525123229

If you're wondering, C means Stephanie would take the parachute and hold someone after jumping off the plane, allowing two people to escape at once.

And of course Josee and MacArthur aren't a choice since they, as the other moles, have their own parachutes and will have the same choices later.

Anyway, good luck!