Answer:
D. Northern Europe was controlled by tribes
B. The pharaoh's crossed arms hold a crook and flail is right, and C. The middle coffin is decorated with colored glass are right.
The Catholic Church paid for many religious works of art from the indulgences
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).