The correct answer is "ξαφνιάστηκε.,τρόμαξε.,ένιωσε δέος.,εντυπωσιάστηκε." This is because the sentence before the options suggests that the subject had a sudden reaction or feeling, which can be translated as being surprised, frightened, feeling awe, or being impressed. Therefore, all four options can be inferred from the context.