Create an upgrade task process, which of the following statement is wrong?

Create an upgrade task process, which of the following statement is wrong?
A . The upgrade operator must use the "admin" level user for the health check, otherwise some check items will fail and the check efficiency will be reduced.
B. For gateway NEs, if the configuration item "If the NE to be loaded is a gateway NE, force FTP/SFTP to be loaded" is selected, an FTP/SFTP server needs to be configured on the network management server to increase the loading speed.
C. "Force Parallel Activation". In this activation mode, all groups are activated in parallel, which will cause service interruption.
D. Check "Use package customization. The software added by the user is a partial package, that is, it is matched according to the board on the network element, which can improve the adding efficiency".

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Answer: A