Question

make a word that means \being in need of someone or something.\ rely er ity ant

Explanation:

To form a word meaning "being in need of someone or something", we combine "rely" with the suffix "ant" to get "reliant", as "reliant" means dependent or in need of someone/something. The other options ("er" and "ity") when added to "rely" don't form a word with the desired meaning ("relier" is non - standard and "reliity" is incorrect spelling).

Answer:

ant (to form the word "reliant")