I’m guessing it wants you to fill in two major key signatures like D major and C major also with two minor key signatures like A minor and B minor. I picked those key signatures because A minor is the same as C major but it starts on A and D major and B minor is the same but it starts on B
Interestingly, all of these subjects are combined in linear perspective, which uses geometric lines and a vanishing point to give the illusion of depth and space to painting. Giotto, Brunelleschi, and Alberti experimented and/or wrote about linear perspective and helped pave the way for future Renaissance artists.
Because art is a symbol or status of living. rural cultures out in the middle of nowhere fighting to survive don't have time or resource to create something. but rich countries or cultures with money to blow have no problem spending on something cool they can create. plus it shows the world a bit of that countries style and flavor
