I think it is A because I have this question before and I know it already.
Answer:
A, B, and D are written correctly.
Explanation:
Either you wrote a typo and meant to write 'incorrectly' - in which case the answer is C for the noncapitalized first word, OR you are playing around with us.
This is due to the given perspectives that the story is read from. Also, another person may personally relate to the events in the story in different ways than others, and therefore interpret it differently.
In the section "Pathology Indicates Manner of Communication," Snow explains the nature of cholera and argues that the study of the disease will help scientists understand how it spreads and how it can be averted. He combines his knowledge of the characteristics of the disease with his clinical experiences to build his argument.
He continues to build his case through other sections of the essay. For example, in "Cases Proving Person to Person Transmission," he provides evidence from other cases to support his theory that cholera is spread between people. Then, in another section, he maps an outbreak that occurred on Broad Street, connecting the affected individuals to a single water pump. After making these supporting arguments, he arrives at his main argument that cholera spreads through contaminated water.
In sum, Snow discusses a different concept in each section; these sections complement one another to build a complete, effective argument. The section labels help the reader follow Snow's line of thinking by mapping the main points.
