The right choice is B my sister told me this once when she was painting lol.
The correct answer for this question is C: the first African American in Congress.
The Pullman strike ended with widespread violence and the President at the time (Grover Cleveland) sent out the army to stop the strikes from obstructing the trains from running. The Pullman Strike was a boycott which shut down much of the passenger and freight trains west of Detroit because of reduction wages. Many of these workers were laid off and had their wages lowered, but did not have their rent lowered which was essentially unfair, as they all lived in towns for train workers.