Answer:
1) Proposal by convention of states, ratification by state conventions (never used)
2) Proposal by convention of states, ratification by state legislatures (never used)
3) Proposal by Congress, ratification by state conventions (used once)
The main way in which the rise of labor unions shaped relations among workers, big business, and government is that they gave far more power to the workers, who were able to pressure their companies into giving them better hours and working conditions--often with the help of the government.
