Who Was Prevented from Seeing the American Freedom Train Exhibit

Who was prevented from seeing the American Freedom Train exhibit in 1947?

A) All blacks in the South were banned.
B) People in Memphis and Birmingham were not allowed, because the train's organizers refused to segregate the viewing.
C) Chinese people in California cities were not allowed to view the exhibit.
D) Blacks in the South were only permitted to view exhibits after 8 p.m. when whites were done touring the train.
E) Immigrants who were naturalized citizens were banned from boarding the train.