Welcome to Westonci.ca, the ultimate question and answer platform. Get expert answers to your questions quickly and accurately. Explore in-depth answers to your questions from a knowledgeable community of experts across different fields. Connect with a community of professionals ready to help you find accurate solutions to your questions quickly and efficiently.

4. The ability of arches to support huge amounts of weight is due to improvements in
what?
A. the design of the arches only
B. the material of the arches only
C. neither the design nor the material of the arches
D. both the design and the material of the arches