Answer:
We get the materials to make new cells through...
biosynthesis, which puts small organic molecules together to create larger molecules.
Step-by-step explanation:
Biosynthesis is the process in your body that turns simple structures into more complex structures. It can happen within a single cell (or within a single organelle within a cell), or across multiple cells. In this case, multiple, since it is referring to humans.
Either this option or A.