One major result of Henry Ford's innovative manufacturing techniques was that "<span>A. The sale prices of cars went down," since he implemented the "assembly line" technique, which greatly increased productivity. </span>
Answer:
As famous as Marco Polo is, he didn't invent anything. However, other inventions such as the compass and the boat influenced Polo. Marco Polo used the compass on all of his travels but especially to reach Asia.
I think it’s A I’m not sure though if I’m wrong I’m sorry .
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