Which is the correct way to punctuate sentence 9?
A.
As soon as the door cracked, "the family started singing Jingle Bells at the top of their lungs."
B.
"As soon as the door cracked," the family started singing Jingle Bells at the top of their lungs.
C.
"As soon as the door cracked, the family started singing Jingle Bells at the top of their lungs."
D.
As soon as the door cracked, the family started singing "Jingle Bells" at the top of their lungs.
