User blog comment:ArtDraw12/Total Drama Horror 3 - Episode 1/@comment-22317052-20170303195735

On the one hand, considering that Scuba Bear is a robot made of metal, I don't really expect a coconut to deal a substantial amount of damage to it, though it may distract it and buy Max some time to run away.

On the other, if we throw the coconut at Scarlett, it might knock her out. However, I am not sure how it will stop the bear from attacking us, unless she gets knocked out, falls and accidentally pushes some button that deactivates it.

Ugh, I'm just gonna take a wild guess and say A, seems like a more interesting option.