Plz help will give u ten points for the right answer
=)

A

Explanation:

For most of the Roman Imperial period, the legions formed the Roman army's elite heavy infantry, recruited exclusively from Roman citizens, while the remainder of the army consisted of auxiliaries, who provided additional infantry and the vast majority of the Roman army's cavalry p.s sorry (im late i haven't been on in a while)

a. competition with other nations.

whats the question? im not quite understanding your question.