When some people reacted negatively to Jackie Robinson’s presence on the Brooklyn Dodgers, baseball officials

Actively worked to stop the dissent.

Explanation: Jack Roosevelt Robinson was the first African American to play in Major League Baseball. He broke the baseball color line by playing amidst the Brooklyn Dodgers on 1947.

Dodger players that suggested they would not play beside a black person, were confronted by with Manager Leo Durocher who took a stand for Robinson.

Opposing teams also threatened to strike if Robinson played, but the National League President, Ford Frick, and Baseball Commissioner, Happy Chandler, declared that any striking players would be suspended.

the answer is d. party organizers, volunteers, voters and elected officials.

b) race riots in several cities