Answer:
The answer is the first one, the use of 1 color in a variety of tints and shades. Keep in mind that mono means 1. This will help you in the future.
Explanation:
In my opinion, there is no right or wrong way to do art, others may disagree on this theory, but as long as you are confident, then you should believe in yourself.
C. abstract
A
You can't fit inside a black box
