I believe it is both had restrictions on personal rights. Hope this helps.
The best explanation why the area between Spain and Gaul was not part of the Roman empire until that later period was a culmination from both undesireability and difficulty in accessing this region due to its mountaineous nature. So I would wager the answer being both C and D - undesireability and difficulty in access.
Answer
a empire is a group like a state of country ruled by a emperor or empress.
Explanation:
hop this helps :)