Im guessing they were called "wagon trains". Apologies if i'm incorrect!
The answer to this question is likely that similar circumstances, trends, and events happen in history at different time periods. Hope this helps!
Answer:
The three major responsibiliities are to Write debate and pass laws
Explanation: Hope it helps!
I think the answer is C I remember I took a test for apex and the answer was close to this one. Let me know if I helped!