Although there is no image shown for this question, Pietro Perigino is an artist that is known for his peculiar depiction of space behind his painting. His works were famous before the arrival of Michelangelo's painting of the Sistine Chapel.
The paintings actually had presented great Linear perspective that redefined the idea of space in the paintings. He played around with a simple technique that adapts well with the foreground, middle ground and background.
Answer:
The colors (Darker colors in the back, lighter colors in the front), and shadows (Add depth).
Explanation:
It's B. So, Mrs. Zuckerman.
