In which sentence is the word novel correctly
used as an adjective?
n
A. I just read a great novel about
life in Medieval times.
the
B. Someone at Starbucks had a
novel idea to make a "Unicorn"
coffee.
C. Oscar spent every spare
moment writing his new historical
novel.

Adjective;

An adjective is a word that describes an animal, person, thing, or thought.

B, is your answer.

In sentences 'A' and 'C' they are used as nouns, they both refer to them as objects, a book.

In sentence B is it used to describe a "Unicorn Coffee".

there is no passage.

the answer is subjective. i personally agree with the first answer for this question.

if one isn't strictly talking about objects then the correct answer would be 'my eyes' since according to this riddle i am asleep and in order to answer/open the door i need to open my eyes first of all.

however, if one is specifically looking for an object, then the first thing i would open would be the door

hope this !