How does a metaphor most clearly contribute to the overall meaning of the poem?

A. The metaphor "leftovers linger" helps the reader visualize how the leftovers wait around even though they are unwanted.
B. The metaphor "leftovers linger" helps the reader smell the old food because the odor lingers in the air.
C. The metaphor "Mom, the Boss" allows the reader to understand that the speaker does not like his mom.
D. The metaphor "Mom, the Boss" allows the reader to understand the seriousness of a dirty room because a boss would be angry with an employee for being lazy.