Which problem contributed to rome's transition from a republic to an empire
a. epidemics
b. natural disasters
c. slave revolts

C. Slave revolts

Explanation:

The 2nd and 1st centuries BC are regarded as the period of crisis of the Roman Republic. The political model centered on the Senate's supremacy, as an instrument of power of the patrician elite, was strongly challenged by the action of different sectors of society: a layer of merchants extremely enriched by the expansion of Rome; the mass of miserable and disgruntled commoners; and the huge contingent of slaves. In addition, the political pretensions of the generals, strengthened by the growing importance of the Army in Roman life, favored the downfall of the Republic.

when in doubt choose c

it's what my teacher told my class when we were going into psats