Which of the following is true about federal, state, and local employment numbers in government since 1951? A. Federal, state, and local employment have all grown significantly since 1951. B. Federal and local employment have all grown significantly since 1951, but state employment has decreased. C. State and local employment have grown significantly since 1951, but federal employment has remained constant. D. Federal employment has grown significantly since 1951, but state and local government has remained stagnant