Answer:
Option-A
Explanation:
The cell requires nutrients for the growth, development and to survive. The body gets the nutrients from what we eat.
The food material eaten by humans has to be digested by the digestive enzymes or the complex molecules are broken down into the smaller molecules. These simple molecules are absorbed by the intestine through diffusion and get transported into the blood.
From the blood, the nutrients reach to different cells of the body and hence are absorbed by the cell.
Thus, Option-A is correct.
That your body is fighting the infection
That would be coal because you can cook with coal, build things out of coal, and use it for energy