Answer wouldn’t be B because the Sherman Anti-Trust Act of 1890 forbade any restraint of commerce, which was used against labor unions. However, the Clayton Anti-Trust Act, passed during the progressive era, exempted unions from the Sherman Anti-Trust and stronger enforced the act. The Elkins and Mann-Elkins Acts didn’t really do anything for labor; they just gave the ICC more power to regulate railroads and interstate commerce, along with the Hepburn Act.
In short, best answer would be A.
He was one of the people killed in the Boston Massacre
I think the answer is picking cotton because that's what people can do on the plantation fields and I also learnt about this a little bit in my history class.
Military leader with the real power in Japanese government (instead of the Emperor). This system was established by Minamoto Yoritomo as part of the Bakufu. Military style government set up by Yoritomo Minamoto in which the Shogun, a military leader, is in charge of the government.