Which of the following prefixes means before something else?

pre-

Explanation:

The prefix pre-, which means “before,” appears in numerous English vocabulary words, for example: predict, prevent, and prefix! An easy way to remember that the prefix pre- means “before” is through the word prevent, for when you come “before” something else to stop it from happening, you prevent it.

well if this is a real question here you go

they are very similar in the ways they affect the body. they affect the respiratory system and they have similar traits. both viruses evolve rapidly and have exponential growth in the body. both viruses are human to human passed.