the amount of snow in the area each year the number of birds that live in the area the number of trees in the area the amount of food available in the area
I am hesitating between 4 options to answer the following question, which option should I choose?
Question: Which best determines the number of wolves that can live in an area?
Possibilities:
- the amount of snow in the area each year
- the number of birds that live in the area
- the number of trees in the area
- the amount of food available in the area

the amount of food available in the area