When creating this drawing, the artist recognized the basic shapes in this figure in order to

confuse the eye, making it difficult to draw.confuse the eye, making it difficult to draw.
record the various parts of the body accurately.record the various parts of the body accurately.
create a change in value.
ignore proportion and record the shape.

3 answers

manipulate perspective and create depth in the drawing.
Ok but which one
Based on the given options, the answer would be:

The artist recognized the basic shapes in this figure in order to confuse the eye, making it difficult to draw.