computer's operating system:_________.a) is a collection of programs that manage and coordinate the activities taking place within the computer. b) serves as an intermediary between the user and the computer. c) a and b is not needed in modern computing devices.

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Answer:

uuuuuuuuuum... i would go with c its proven that a and c are the most common to be the correct answers so i would choose one of those two if i were u

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