For six years as a boy, Walt Disney delivered copies of The Kansas City Star and (morning) Kansas City Times with his father, who was a newspaper carrier. He applied for a permanent job with The Star as a cartoonist, clerk and even truck driver - but the newspaper turned him down each time. Disney based Mickey Mouse on a little rodent he befriended while working in his small animation studio in Kansas City. After his studio failed, he left nearly penniless on a train for Hollywood. He told fellow passengers he was going to make animated cartoons. The reaction, Disney recalled, "was like saying I swept out latrines." His "Snow White and the Seven Dwarfs," the world's first feature-length animated film, proved a stunning financial success. hope this helped! ^^ Read more here: http://www.kansascity.com/customer-service/about-us/article7948.ece#storylink=cpy
The answer is B because <span> Progressives believed that the growth of industries and the growth of cities caused social problems for our society.</span>