Operating system is crucial because: a. It only displays text. b. It stores photos. c. It functions as a web browser. d. It manages all hardware and software.

d. It manages all hardware and software.

The operating system is crucial because it is responsible for managing all the hardware and software components of a computer system. It controls the allocation of resources, facilitates communication between different components, and provides a user interface for interacting with the computer. Without an operating system, a computer would not be able to function properly.

d.
It manages all hardware and software.