The answer should be D) Behavioral.
Process of elimination, cant be A) X- ray cause that for screen shots on what is inside u, autism is a mental disorder, u cant see it.
Cant be B) cause u cant detect mental disorders through a blood test.
Cant be C) cause that is measuring weight and height.
The first are the grass,mouse,rabbit, and goat
The answer is A cuz a food chain starts with solar energy
I think its B but I'm not sure .. sorry
Yes it will help you with c and d
