Question

the root junc means join. what does the word adjunct mean? something that comes before something else something that is added to another thing something that has harmful effects

Explanation:

The root "junc" means "join". The prefix "ad - " means "to" or "toward". So "adjunct" should relate to joining or adding to something. The first option refers to something prior (prefix "pre - " related), and the third is about harmful effects (unrelated to "join"). The second option, "something that is added to another thing", fits as adding is a form of joining to another.

Answer:

something that is added to another thing