D. A technology-and creativity-driven world
Advntage:
provides CPU scheduling, memory management, file management, and other operating system functions through system calls. The other one is that it is a single large process running entirely in a single address space.
Disadvantage: if anyone service fails it leads to an entire system failure
the answer is virus scanner which is not hardware but software because if you didn't know hardware is stuff like a monitor a mouse a battery a case that's all stuff you can generally touch even the hardware inside the computer you can touch where as virus scanner you can not touch because its software again my point being its software NOT hardware