That would be D. More security
Assembly lines are faster and more efficient then human hands so it can be A or B. The assembly line does lower prices (C) because there are less human employees to pay to produce goods
Hope this helped!
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Your question asks what was not a result of the use of the assembly line.
The reason why answer choice "D). More Security" would be the correct answer is because the assembly line actually didn't provide any more security to the workers that were working on the assembly line. The assembly lines were actually not safe for the workers, and left workers really tired and hurt at times.
Assembly lines were actually used for higher productivity, since it allowed products to be made without stopping for breaks. Assembly lines were very productive and got many products finished
Assembly lines also have a greater efficiency, due to the fact that products were build at a faster rate than just regular human hands. It got products made faster, and allow businesses to make more in a short amount of time.
Assembly lines also made lower prices, due to the fact that they could make so much form revenue since they could get a lot of products out quick. They also didn't need to hire that many workers, they would only need a few to work on the assembly line.
