<span>the most important reason for the growth of labor unions in the latter half of the 19th century was : the way the workers were treated by big business and the big industry
Back then, they were overworked and underpaid. To bring fairness to the treatment towards the labors, thet formed Unions to fought for their cause</span>
D is the answer because it is right
The difference in both Historian point of perspective was that Historian A believed the American Revolution was causes by colonist greed. Historian B believed the American Revolution was caused by the unfair taxe policies in the colonies.