Which of the following best explains the changes in higher education in Oklahoma in the 60s and 70s? A. Oklahomans ignored higher education and focused only on elementary school. B. Oklahomans established vocational and occupational schools that later became community colleges. C. Oklahomans decreased funding to vocational-tech schools and instead funded the University of Oklahoma. D. Oklahomans funded only four-year colleges, focusing only on supporting major universities.