Dog , Oscar is the noun
adjective is new
adverb is chewed
The tele screen couldn't see him in that position in the book.
Answer would be C I'm pretty sure.
An Adjectival Phrase - a group of words headed by an adjective that modifies a noun.
An Adjective - a word or phrase naming an attribute, added to or grammatically related to a noun to modify or describe it.
A Noun - a word (other than a pronoun) used to identify any of a class of people, places, or things
I believe your answer is C. If I'm wrong, then my apologies.