Answer:
A microprocessor is a computer processor where the data processing logic and control is included on a single integrated circuit. A computer need microprocessors to perform the functions of a computer's central processing unit.
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The answer is A, or Locating bottlenecks in a network.
Cleaning up a system helps clear up the space on the drives. It may also clear up processor usage, ram usage if you uninstall programs that automatically started when the system booted. You may also delete some unwanted programs in the process.