Answer:
D) bacteria
Explanation:
Antibiotics can kill certain bacteria, but sometimes it's better to just let the bacteria run its course and let it die out on its own. It should be noted, that with our mass usage of antibiotics, certain bacterias have developed a resistance against antibiotics and that is not good at all.
The answer is methamphetamine
Some of the possible causes would be upper respiratory infections and sinusitis infections aswell.
A. a condition that is sterile or free from infection.
