You attempt to install the package oped.8.7.6-12-x86_64.rpm on a server. even though the package was downloaded from the official repository, the server states that the package cannot be installed because no gpg key is found. what should you do to allow the program to be installed?
a. import the repository’s private key.
b. import the repository’s public key.
c. verify the hash by using sha.
d. verify the hash by using md5.