Elias is standing on a Transform. I had the same question and I got transform
Answer: New and improved technology
Explanation: With more development tools we can significantly decrease manual labor which then causes us to increase our production time. As we improve this technology we are able to shift to more commercial production producing more for our larger population rather than simply for oneself and or their family
Hope this helps
C is the answer for this question
I think glass does. or maybe a glass prism.