Which excerpt from "A Poem for My Librarian Mrs. Long" gives the best example of an implicit detail?

Question

A. "There was always a radio which brought us Songs from wlac in Nashville
B. "There was a bookstore uptown on street Which I visited"
C. "And up the hill on vine street (The main black corridor) sat our carnegie library"
D. "And Mrs. Long opened that wardrobe But no lions or witches scared me"***

Please correct me if I'm wrong