The sentence that best analyzes the author’s use of allusion in this passage is the following:
C. The author mentions how musician Louis Armstrong was hardworking to show how he learned core values even in Sodom and Gomorrah.
The option B (The author refers to the evil of Sodom and Gomorrah to suggest a comparison to the contemporary city of New Orleans) is not wrong, but misses the allusion to Louis Armstrong.
