Answer:
D.) The word "smiling" is a verb that functions as an adjective.
Step-by-step explanation:
This option is the only one that make the most sense and fit perfect. The word smiling is the word that is to be compared to any vampire.
More Explanation:
The text sentence is talking about not trusting a thing and that thing is a vampire, but not just any vampire a smiling one. the word smiling is changing the sentences acting like a adjective as its verb function. That is an easy way to find the verb function.
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