Sally has a Hot Fix Accumulator (HFA) she wants to install on her Security Gateway which operates with GAiA, but she cannot SCP the HFA to the system. She can SSH into the Security Gateway, but she has never been able to SCP files to it. What would be the most likely reason she cannot do so?

A. She needs to edit /etc/SSHd/SSHd_config and add the Standard Mode account.

B. She needs to run sysconfig and restart the SSH process.

C. She needs to edit /etc/scpusers and add the Standard Mode account.

D. She needs to run cpconfig to enable the ability to SCP files.