In a WLAN project, when the engineer was upgrading the AC, the AC system was damaged due to an unexpected power failure. At this time, which of the following methods can be used to re-upgrade the AC?

In a WLAN project, when the engineer was upgrading the AC, the AC system was damaged due to an unexpected power failure. At this time, which of the following methods can be used to re-upgrade the AC?
A . Command line upgrade
B. Web network management upgrade
C. Boot upgrade
D. eSight network management upgrade

Answer: C