The most important factor is B.Latitude
In this system, the process of digestion has many stages, the first of which starts in the mouth.
Digestion involves the breakdown of food into smaller and smaller
components, until they can be absorbed and assimilated into the body.
I think the correct answer from the choices listed above is the third option. It would be forming a hypothesis the step <span>in a scientific investigation that a scientist usually do before performing an experiment. It is very important in making research studies.</span>