Final answer:
Young women during the post-World War I era preferred to wear shorter skirts and boots in line with the flapper style, which highlighted a more liberated sense of fashion and social attitude.
Step-by-step explanation:
According to the provided audio context about clothing preferences during the post-World War I era, young women liked to wear clothing that was indicative of the flapper style. These women, known as flappers, preferred to wear shorter skirts and boots along with other apparel that expressed a new, more liberated morality. This style was characterized by straight lines, shorter haircuts such as the bob, minimal emphasis on the breasts, and focused highlighting of the legs and ankles. This shift in fashion among young women represented their newfound confidence and the changing societal norms of the time.