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C. eerie because a predicate adjective is something that modifies the subject of a sentence. The subject of this sentence would be "the surrounding landscape" because we are addressing the landscape itself, and the predicate adjective, or what modifies the subject, would be eerie. (appeared would be the linking verb, because it links the predicate adj. to the subject of the sentence.) I hope this helped!
Your work experience and educational background. If a teacher was interviewing for a job, they would want to know how qualifies she is, and if she even went to college. If they didnt know this, then they would be skeptical.