What most likely prevented the empire from expanding farther into these areas?

Question

A.
Rome could not decide which area to invade.
B.
Those areas had land that was poor for farming.
C.
Rome wanted to have only a small empire.
D.
Those areas had powerful enemy tribes.

Answer 1

D. Those areas had powerful enemy tribes.

This option is the most likely reason that prevented the Roman Empire from expanding farther into certain areas, as formidable opposition from local tribes often thwarted military campaigns and expansion efforts.