Hi lovely,
The answer you're looking for would be B) Checks and Balances.
Sweatshops were factories that treated the workers unfairly which could consist of low wages, poor environment, and possibly working long hours.
The main purpose of the march led by James Meredith to Chicago was that "<span>c. it was a march in support of voting rights for black Americans," although it encompassed a variety of Civil Rights goals as well. </span>