Most likely it’s going to be B. —Something to be Solved.
The correct answer for the given statement above would be option A. She will have been. The pronoun "she" is in the singular, third person. Other pronouns that are singular, third person include he, and it. And "will have been" is the conjugation of the verb "to be" in the future perfect tense.
Answer: I’m thinking the prepositional word would be strange. Even though technically it is not a prepositional phrase. And the creature would be changed by it.
Metaphors are figures of speech in which, something is referred to, but not directly.
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Hope this helps! :)