Answer:
Capitalization, usage, spelling, and punctuation
Step-by-step explanation:
The acronym CUSP is a useful tool that can help us proofread and improve our texts. The letter "C" refers to capitalization. Letter "U" refers to usage, which means checking that the words are being used correctly in a sentence. "S" stands for spelling, and it encourages you to check whether all your words are spelled correctly. Finally, "P" refers to punctuation, which is one of the most common mistakes students make in texts.