I think it's C , but I'm not 100% sure.
Is there any option we can choose?
Pretty sure the answer is C
C. Adverbs usually end in -ly and modify verbs.
Answer:
You should add more context to your question if you wish for an answer. Though a good assistant to find which is correct on your own is Grammerly. It's a writing assistant. Just add it to your phone or PC.
Explanation: