I would say a c and d hope this helps
Answer:
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This artwork is using textures by using the jam and peanut butter, i think it is also using negative space, there are different tones and colours, like the jam is a warm red and the peanut butter is a cold light brown, i also feel like the lines aren’t definite but rather different on both sides.
It should be C!!!!!!!!!!!!!!!!!
Answer: The art of secret writing is called a cypher.