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A privileged instruction may be executed only while the hardware is in kernel mode. Which of the following
is LEAST likely to be a privileged instruction?
(A) An instruction that changes the value of the program counter
(B) An instruction that sends output to a printer
(C) An instruction that modifies a memory management register
(D) An instruction that halts the CPU
(E) An instruction that resets the computer’s time-of-day clock