Upon logged in with administrator credentials on the switch, which command should be used to start the update procedure?

An administrator is about to perform a firmware update on an MX9116n switch OS 10 from the CLI. The latest OS 10 switch firmware image has been downloaded and their TFTP server is set up.

Upon logged in with administrator credentials on the switch, which command should be used to start the update procedure?
A . firmwaredownload tftp://server-ip/imagename
B . install tftp://server-ip/imagename
C . fwupdate tftp://server-ip/imagename
D . upgrade tftp://server-ip/imagename

Answer: B

Explanation:

Reference: https://topics-cdn.dell.com/pdf/smartfabric-os10-5-0_en-us.pdf