Which of the following sentences shows Jimmy's childlike behaviors.

A、 A thousand times Jimmy asked, "Is it time for the cake yet?"
B、 He anxiously waited for the candles to be lit and then blew them out with one long breath.
C、 He jumped up on the chair and stood erect pointing both index fingers into the air to conduct us and yelled, “One …more… time!”
D、 After my father's death, Jimmy grasped that the world he'd known was gone.