Like a body system? What type of system?
I would choose B. due to the fact someone is sitting there with them watching them eat as they eat as well. in A. you have no clue if your kid will actually buy food even if there is time.
in C. they could feed it to the dog or throw it away again you don't know due to no one else being their.
and in D. will they buy food? you don't know.
Answer:
x+4y-z=-5,X+y-6z=-12,3x-y-z=4
The correct answer can be A,
Because that student knows that cutting her self she will bleed and maybe loose a lot of blood.
Its not B , because they didn't plan it.
Its not C , because it was an accident.
dose this Help?