Although a "gust lock" is not mentioned by that specific title the concept is covered in the Flying Controls chapter of PoF.

A gust lock is designed to stop the flying control surfaces banging around in gusty conditions when the aircraft is parked on the ground. These take different forms, basically internal or external. Internal locks hold the control column, external locks hold the control surfaces themselves. Whether or not a control system needs locks and of what type will depend on the system design. Best read the PoF section.

The answer to the question is that both I and II are wrong. I because it is a ground system and II because all reversible systems will need a gust lock. Only fully powered irreversible systems can do without one.

Note that there are questions about taking off with the controls locked - it has been done