What is the cause of this problem?

An administrator has a standalone controller that runs ArubaOS 8.x software and wants to upgrade it to a newer release. The upgrade will be performed from the front panel of the physical controller. The administrator places the new software in the root directory of a USB drive. On the controller’s LCD panel, no image is found.

What is the cause of this problem?
A . The image must be placed in the /Upgrade subdirectory.
B . The image must be placed in the /Images subdirectory.
C . The image must be placed in the /ArubaImage subdirectory.
D . The upgrade must be performed from the controller’s WebU

Answer: C

Explanation:

Reference: https://www.arubanetworks.com/techdocs/ArubaOS_63_Web_Help/Content/ArubaFrameStyles/ Base_WLAN_Switch/Using_the_LCD.htm