D. A higher priority is needed on learning rather than material concerns.
Step-by-step explanation:
Eleanor Roosevelt here is arguing for a sort of education through which people can learn to think for themselves and live through their minds.
The first argument is for educating kids in school beyond what their textbooks teach them, this includes the inculcation of values of importance of books and building libraries.
The next insistence is on the working class who have no access to education and hence can only think about material concerns and remain in the situation they are in.
The argument is that adults as well as children need to be educated for education's sake and not just to get a job.