When you summarize, you take the main points of a story and write in in a few sentences. You want to make sure you hit all the key parts of the story and don't focus on the small details. If you were telling a friend about a movie you saw, you would by describe the major events, but not the little moments. That would be summarizing. You can do this with any book,movie,story etc. :)
It can sometimes be difficult to tell the difference between adjectives and adverbs in a sentence. You must ask yourself what word the modifier is modifying. If the modified word is a noun, the modifier is an adjective. If the modified word is a verb, adjective, or adverb, the modifier is an adverb.Answer is B.
It is C. Adverb. I'm not just gonna type this senctence so I can post the answer, as it'll be more than 20 characters.