I am almost positive the answer is light, but let me know if that is wrong
Answer:
It would be the first choice because when going up a scale you use ABCDEFG therefore when going down your Chromatic scale you would use GFEDCBA.
Explanation:
The most important limitation of stone is the lack of tensile strength, the capacity of a material to withstand binding.
Stone is durable and impressive stuff, but it's also challenging to quarry, and heavy to move, and it has tension and stress limitations. Where there are resources available to excavate and cut it precisely, stone can be an extremely strong and useful natural material. Unlike brick, it can be stacked without mortar and support heavy vertical loads. Stone resists deforming, weathers the elements well, withstands fire and helps maintain stable interior environments.