Answer:
The Romans didnt invent medicine but they did invent a Public Health Service that had special programs for providing healthcare for poor. ... Romans invented communal toilets, improved sanitation and sewers. Romans didn't invent sewers but they did make them better. In Rome they used sewers to get rid of waste water.
Explanation:
The answer is going to be A
Mostly, they worked with cattle in cattle drives. Hope this helps.