how did many manufacturers in the 1920s improve efficiency to meet increasing consumer demand?\nthey raised…

how did many manufacturers in the 1920s improve efficiency to meet increasing consumer demand?\nthey raised prices to reduce consumer demand, allowing time to meet production needs.\nthey resisted changing production and sales techniques so workers would not need retraining.\nthey offered a smaller variety of goods to focus on producing only a few products.\nthey adopted mass - production manufacturing techniques developed by henry ford.
Answer
Brief Explanations:
In the 1920s, Henry Ford's mass - production techniques, such as the assembly line, were widely adopted. Mass - production increased efficiency by allowing for faster production of goods. Raising prices (first option) would not improve efficiency. Resisting change (second option) would not help meet demand. Offering a smaller variety (third option) is not the main way manufacturers improved efficiency in the 1920s compared to the impact of mass - production.
Answer:
They adopted mass - production manufacturing techniques developed by Henry Ford.