Final answer:
During the 1920s, the Comprehensive high school was designed to meet the needs of a diverse and growing population of young people(option a).
Step-by-step explanation:
During the 1920s, the answer is a. Comprehensive high school.
As the population of young people grew and became more diverse, the education system needed to adapt to meet their needs. Comprehensive high schools were designed to provide a wide range of academic and vocational courses to prepare students for various career paths. They offered a combination of traditional academic subjects, like liberal arts and advanced math, as well as vocational training in areas such as agriculture, mechanical trades, and homemaking.