I believe the answer is B
It's b. the young doctor selling the doll's eyes
When someone signs train gone, they are signing an American Sign Language Idiomatic expression. The idiom train gone is used when you missed what is being talked about. The sign is based on the sign for train. It could be formed using both hands, creating a L-shape, U-shape, and a G-shape.
Answer: Bingo hall in the North, during the Great Migration (probably in the 1940s)
Explanation: