What three groups could be roman citizens?

Ineed with what i should write for my research paper. my topic is history of slavery. 1800 words. all i need is what to write in each paragraphs. like when the research paper has titles for each paragraph and it explains the tile in each paragraph. for example when did slaverh begin? why did it begin like an outline.

Which economic sector employs the least number of people in mexico, barbados, and venezuela? a. agriculture b. services c. industry

Select all that appl, characteristics of julius caesar's rule. 1. gave women the right to vote 2. made himself dictator for life 3. the poor 4. gave members of the senate more power