Which of the following statements regarding the operation window time for a software upgrade is false?

Which of the following statements regarding the operation window time for a software upgrade is false?
A . It is determined by the accepted service interruption duration.
B . It must be longer than the upgrade execution time.
C . Troubleshooting time must be reserved.
D . Only network maintenance personnel need to be notified of the operation window time, while the customer does not.

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Answer: D