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
<span>(a) stability of elements on either side of an imaginary vertical line
(b) recognizable arrangement of elements based of their proportions
(c) systematic arrangement of elements based on their size.</span><span />
You could draw a cow behind a spiked fence
