Which document creates a plan for government that includes checks and balances and is the supreme law of the united states?

a.
articles of confederation

b.
declaration of independence

c.
bill of rights

d.
u.s. constitution

Basic In the late 1800s, workers organized unions to solve their problems. Their problems were low wages and unsafe working conditions. ... Exemplary In the late 1800s, workers organized unions to solve their problems. Their problems were low wages and unsafe working conditions.

hope this helped :D  

(i did not copy anybody else it might look like i did, but i had the same question and i picked a random answer and this worked)