I think the answer is A. Trade and commerce
When employees stop working to force an employer to meet their demands they are engaging in a strike. Strikes are attempts by workers in unions or independently to seek to influence their employers decisions to them usually in regards to wages, benefits, and work requirements.
Answer:
To show even great leaders were afraid to stand up against slavery.
It means the US constitution is the main laws and no state laws are more powerful than it.
The government was limited by the separation of powers because of the things of the 3 branches could do , and they can do checks and balances where one branch check the other 2 to see if one get over powered then the other 2 will find a way to keep the branch that is becoming overpowered into a range where its still controlled.