To be successful, a space management system must:

A. Be easy to use

B. Dictate particular responses

C. Remain the same as a drivers age

This is for drivers ed

I believe the answer is A

A. Be easy to use.

Explanation:

A space management system is a method used to manage certain space with indications, like sites you can stay and other where you can't. So, in order to be successful, it has to be easy to use, it can't generate confusion.