Which configuration file would be edited to change the default options for outbound SSH sessions?

`/etc/ssh/sshd_config` is the configuration file for the SSH *server* daemon (`sshd`), controlling incoming connections.

`/etc/ssh/ssh` is not a standard configuration file; `ssh` is the client executable itself.

`/etc/ssh/client` is not a standard SSH configuration file.

The `/etc/ssh/ssh_config` file contains system-wide default settings for the SSH client program (`ssh`). These settings dictate how the client behaves when initiating outbound SSH connections, such as default ports, ciphers, and authentication methods.

`/etc/ssh/ssh_client` is not a standard SSH configuration file; `ssh_config` is the correct name.