What is one purpose of symbolism used in this passage

C. To portray an urban setting as a place of loneliness and isolation.

Explanation:

Symbolism refers to the use of symbols to represent ideas and characteristics, with symbolic meanings that differ from their literal sense, and provide a deeper significance.

Prufrock uses symbolism when he describes a cold and lonely urban environment by using the idea of "half-deserted streets" and "sawdust restaurants"