So the statement that is true about the spell checker and the possible answer among your choices is letter C. Most spell checkers flag inappropriate word usage. I hope you are satisfied with my answer and feel free to ask for more if you have questions and clarifications.
Answer:
A
Explanation:
for example, if I say " she is running fast" the adverb fast describes the word running, which is a verb.
so the word adverb is a verb modifier