Final answer:
The goal in controlling microbes is to control their growth through methods like cooking and preparing food properly and using physical methods like filtration.
Step-by-step explanation:
The goal in controlling microbes is best described by option c, which is controlling their growth. It is not possible or practical to eliminate all microbes, as they are everywhere in our environment, including our bodies. However, we can control their growth through various methods. For example, cooking and preparing food properly can help avoid microbial contamination and growth. Additionally, physical methods like filtration can remove microbes from samples without killing or inhibiting their growth.