Question

Is beef a object nouns or people nouns or proper nouns

Answer 1

Because beef is an object, not a person or human, you can roll out a people noun right away. But, because this is not capitalized as most proper nouns are and because it does not name a specific object, it is not a proper noun.

So, I believe that the answer is object noun.

Answer 2

object nouns, it isn't capitalized so it can't be people or proper.