1. Which group of people did the Romans view as a threat to the empire?

The 1st real Threat was the Etruscan league.

Explanation:

There were conflicts before that(Latin wars). But By the 4th century BC, Etruscan's had formed an Alliance with some of the Celtic Tribes to the North. Becoming a major threat to Rome

answer: the correct answer is d. a christian revivalist movement in the u.s. during the early 19th century

explanation: the second great awakening was lead by the preachers of baptist and methodist congregations in order to gain support for the protestant religion from the 1790's to 1840's