Which statements are correct. Mark all correct responses answers. • a. In many countries, there are significant differences in the quality of education between urban and rural schools; as well as between private and public schools. • b. Despite the progress achieved, there is still a long way to go towards equity in access to knowledge. • c. No country has seen declines in literacy or years of schooling since 1970. • d. In Arab states significantly more women are enrolled in college araduate education than men.