The correct answer is A - hamartia. "Hubris" means pride. "Anagnorisis" means a discovery character makes about himself, usually. "Peripeteia" means a turning point, a reversal of circumstances. Thus, the only correct answer is "hamartia", which means a tragic flaw that brings the character to his downfall.
their environment contributed to their actions because they lived on an island and they had to do certain things in order to survive and yes there is an animal.