The Correct answer is C. None of the other answers that are up there make sense.
Answer:
She was killed when Dorothy threw a bucket of water on her
The answer is true. Accidentals are a note or pitch that is not part of the key signature that you're playing in, and these notes are marked by using the sharp (♯), flat (♭), or natural (♮) signs. Accidentals change the note they accompany either by raising or lowering it by a semitone (or half step).