A network engineer is having a problem adding a custom-written script to an AOS-CX switch’s NAE GUI. The script was written in Python and was successfully added on other AOS-CX switches. The engineer examines the following items from the CLI of the switch:

What should the engineer perform to fix this issue?

A. Install the script’s signature before installing the new script

B. Ensure the engineer’s desktop and the AOS-CX switch are synchronized to the same NTP server

C. Enable trust settings for the AOS-CX switch’s SSL certificate

D. Remove a script that is no longer used before installing the new script