Final answer:
Marty was checking the rabbit for fur, which is important to remove before cooking and consumption. It highlights the unique evolutionary trait of rabbits and the practical considerations when preparing game meat.
Step-by-step explanation:
Marty was checking his fried rabbit for C) Fur. In a situation where one is preparing a wild-caught rabbit for consumption, it is critical to ensure the meat is free of fur before cooking and eating. Fur is a distinctive trait in the evolutionary history of rabbits, setting them apart from other animals that may also lay amniotic eggs, such as lizards. It is common practice to remove any remaining fur from game meat to avoid it from being ingested.