4. Which statement about The Negro Travelers’ Green Book would the author most likely agree with? a. The success of The Negro Travelers’ Green Book is dissatisfying, as the guide itself will be irrelevant in a few years. b. The success of The Negro Motorist Green Book depends just as much on the publishing team as it does on the cooperation and feedback of its readers. c. The success of The Negro Travelers’ Green Book depends on the willingness of businesses to be included in the guide. d. The success of The Negro Travelers’ Green Book is due to pure luck and setting within its time period.