The following is a rough draft of a student's story, which may contain errors.

A Winter Night

(1) It's freezing out here, Rebecca said to her brother. (2) She was jumping up and down trying to stay warm despite the cold night breeze. (3) She and the rest of her family were standing in front of a one-story, red-brick house that was just down the street from their house.
(4) Rebecca's father rang the doorbell. (5) A light turned on in the foyer. (6) "All right, everyone," he said in a hushed voice. (7) Get ready to sing when the door opens.
(8) Rebecca cleared her throat. (9) As soon as the door cracked, the family started singing Jingle Bells at the top of their lungs.
(10) The neighbor stood in the doorway with an amused look on her face. (11) It was the first time she had carolers come to her house. (12) She just relaxed and enjoyed the song.
4
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."