I believe its D. Conclusion as the narrator finally comes to a conclusion of what they have realised.
The main purpose of the last line of the passage is to signal the reader that steps will follow.
In the first part of the passage, the author is giving some <em>background information</em> about the topic, which functions as an introduction to develop the main topic. The last sentence serves <em>to trigger</em> what the passage is actually concerned in, that is, the different ways in which contamination by this bacterium can be avoided. Thus, what the reader is expecting after the last line are some steps to follow.
The right answer for the question that is being asked and shown above is that: "a. laugh when he sees little Arliss and the new pup playing in the drinking water." Travis not do after Mr. Coates returns home is that a. laugh when he sees little Arliss and the new pup playing in the drinking water<span>a. laugh when he sees little Arliss and the new pup playing in the drinking water</span>
It depends on what type of bullying it is and if your talking about a movie or a book...
