Which statement is correct about the validate option when upgrading JUNOS software?

A.
It will check the MD5 checksum of the install package.

B.
It will check if the device meets the memory requirements for the install package.

C.
It will check the compatibility of the configuration with the install package.

D.
It will check if the device meets the storage requirement for the install package.

Explanation:
When you upgrade or downgrade Junos OS, we recommend that you include the validate option with the
request system software add command to check that the candidate software is compatible with the current
configuration. By default, when you add a package with a different release number, the validation check is done
automatically.
https://www.juniper.net/techpubs/en_US/junos12.3/topics/task/operational/junos-candidatesoftware-compatibility-verifying.html