What Is the Purpose of the Ssh-Agent Command

Multiple Choice

What is the purpose of the ssh-agent command?

A) ssh-agent is a program that checks for machines in the network that have an ssh daemon running.
B) ssh-agent is used to fetch public keys from machines within your network.
C) ssh-agent is used to avoid typing the passphrase for your key on each login.
D) ssh-agent is a program that helps configure the ssh daemon.