How does the section of patient zero called "the great debate: miasma vs. germs" (41) add to the description of John Snow's investigation (38-40) and our understanding of the significance of his ideas?
(a) It highlights the importance of miasma theory in Snow's investigation.
(b) It emphasizes the role of germs in John Snow's investigation.
(c) It shows the debate between miasma and germs and its impact on Snow's findings.
(d) It discusses unrelated topics not relevant to Snow's investigation.
