In "The Story of David," why must David leave the king's house and return to his father's home in Bethlehem?
A.
Everyone in the king's house realizes that David cannot be trusted.
B.
Everyone in the king's house is too busy to listen to music.
C.
His father has grown quite ill in David's absence and needs help.
D.
His father summons him because all his brothers have joined the army.