Please choose the correct ending to complete the given sentence: Pets and Animals: [header] How to become a wolf expert [title] Start researching wolves. [step] Use any available sources! Also, decide whether you want to research any kind of wolf, or just a specific breed, like a timber wolf or an arctic wolf. [title] Research what they eat.

Ending1: [step] Don't make a huge list, then ask! Ask how much the wolves are eating. Maybe scratch, add, and erase the unnecessary stops. Ending2: [step] Wolf culture goes for wolves that do not eat meat. Pursuing wolf lore through scholarly papers will allow you to build valuable information on the wolves' current diet, health needs, and breeding status. Ending3: [step] A wolf's main prey is ungulates such as moose, deer, elk, etc. And things like musk oxen and bison. Ending4: [step] Whatever you want to study, you can't do in a small library. Every wolf wolf eats some form of animal food, as do you! [title] Get to know your territory.

Answer format: ending1/ending2/ending3/ending4