Narrative is a type of nonfiction
dog is a type of mammal
therefore A might be the answer
A. Uses the vocab word incorrectly. ‘Exploit’ means to take advantage of which does not make sense in the context of the sentence (the correct word for that sentence is probably ‘explosion’).
B. Is correct because ‘esteem’ means to hold respect for.
It establishes a kind of curiosity. This means that a kind of curious tone was created.