ExplanationThe clues to the blank are that it was once unspoiled before the calamitous event, which indicates that it is now damaged, the word you are looking for. Choices (A) and (F) can be used to describe physical destruction and are the best answers.
Choices (C), (D), and (E), may refer to the people who live near the seascape, but the blank is only about the seascape and there are no clues about its inhabitants. Choice (B) does not provide a good substitute for destroyed or spoiled.
Hence options A and F are correct!
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