You configured your router several months back but now need to make some configuration changes. You try to log in but can't remember your password. After several attempts, you realize that you have no idea what that password was. You need to get into the router, what should you do$?$

Use CTRL $+$ ALT $+$ Del

Hold the reset button down for $30$ seconds to reset the router

Unplug, wait $10$ seconds, and plug it back in

Buy a new router, nothing can be done to get into the existing router