Answer: i really hope this helps you <3
Explanation: When some objects in an painting/picture/portrate are hidden by others, it gives the sight of overlapping objects and creates an illusion of space and a three-dimension feeling In landscape painting, layering the planes of the high ground, middle ground, and background into the illusion of space.
C. taking control of the venue would be the best answer for me probally not as helpfull
if it's for a test I'd say c. but I think you can put whatever you want in a sketchbook