Mexico is creating a stronger workforce by eliminating the competition?

the answer might be either a or c. can't be too sure , because i searched the web, but no valid answers came through.

answer; /// the answer to the first question is (b) it began when people first deliberately seeds; /// and (d); // it gave people a steady food supple for the first time;

stewards ice box was the purchase of alaska from russia and it was called that because people thought it was not a good idea to purchase alaska

imperial crisis leads to civil war.

roman forces withdraw from britain as goths attack rome.

odoacer topples romulus augustus

huns attack the empire and drive german peoples ahead of them.