The Best Explanation for the Difference Between Operating System Software

The best explanation for the difference between operating system software and application software is that operating system software

A) is developed for a specific purpose, and application software tells the hardware how to run.
B) has to be operated by certified professionals, whereas anyone can use application software.
C) tells the hardware how to run, and application software is developed for a specific purpose.
D) can run on its own, whereas application software requires an operating system.