Since month 2 is the first month that is a point that has an ordered pair, you would take 10/2, which is, and Sapling A has its first full ordered pair at 50,3 then you would take 10/3, which is 3.3. So 5 is greater than 3.
B.Grass, cause without grass there wouldn't be any field mouse and without field mouse there wouldn't be any corn snake and without any corn snake there wouldn't be any hawks Hope i Helped ^_^