Just anything that describes you :) definition below
Explanation:
An adverb is a word that modifies (describes) a verb (he sings loudly), an adjective (very tall), another adverb (ended too quickly), or even a whole sentence (Fortunately, I had brought an umbrella). Adverbs often end in -ly, but some (such as fast) look exactly the same as their adjective counterparts.
I think it’s C- another term for cavern walls. It might be D though. Stalactites and stalagmites are formations that happen on cave walls. I would go with C
