Answer:
A. to create a lively description of the chair
Explanation:
The figurative expression used above, which is known as personification, is mostly used by authors and poets to give inanimate object life or feeling that is only possible in a lively being.
Just like a human can crouch or bend their knees in a squatting position, the expression above tries to paint same lively picture of the chair taking the same form in description.