I want to test the ability of students to read a passage and answer questions about it. Could you please come up with a good question for the passage "Secondary education in the United States did not emerge until 1910, with the rise of large corporations and advancing technology in factories, which required skilled workers. In order to meet this new job demand, high schools were created, with a curriculum focused on practical job skills that would better prepare students for white collar or skilled blue collar work. This proved beneficial for both employers and employees, since the improved human capital lowered costs for the employer, while skilled employees received a higher wages."? 

Why did high schools become more prevalant in the early 20th century