Which of the following is wrong about the operating system?
A.
Android and iOS dominate the current market for mobile operating systems, though there are still several others.
B.
A computer could have two or more operating systems from which the user chooses when the computer is turned on.
C.
Mobile devices, such as smartphones and tablet computers, have the same operating systems as those of a typical desktop or laptop computer.
D.
The operating system allows application software to access system resources, either directly or through other system software.