Which sentence uses a narrative technique to develop a character ?

A. I can see lights of the town below after the leaves have all fallen

B. “Maybe , “Hannah smirked, “you could just tell her I’m a trapeze artist in my spare time”

C. He ran across the street, taking the bag with him, and disappeared into the crowd

D. I looked at the clock as it sputtered, “Cuckoo”, and noticed the hands hadn’t moved at all