I think the best conclusion that can be drawn about the "Flexibility Riders" is some youthful, white Americans bolstered combination and equivalent rights for African-Americans. Opportunity Riders were social equality activists who rode interstate transports into the isolated southern United States in 1961 and consequent years keeping in mind the end goal to challenge the non-requirement of the United States Supreme Court choices Morgan v. Virginia (1946) and Boynton v. Virginia (1960), which decided that isolated open.
The correct answer to the question above is the usage of vernacular English. Gilbert and Sullivan's operettas were typically in vernacular English, adding to their appeal for their primary audiences. Gilbert and Sullivan are referring to the collaboration of the two English librettist W.S. Gilbert and Arthur Sullivan during the Victorian era.