Read this excerpt The First Men in the Moon. "In the moon," says Cavor, "every citizen knows his place. He is born to that place, and the elaborate discipline of training and education and surgery he undergoes fits him at last so completely to it that he has neither ideas nor organs for any purpose beyond it."
Which of the following historical themes could be inferred from the passage above?

Scientific discoveries
Division of social classes
Views about women
Unemployment and poverty