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.
(I hope i'm right)
Which event was MOST responsible for Richard Nixon's announcement of the end of the Indian termination policy.
I think it would probably be B.
Hope this helped! If i'm wrong, please tell me so I don't make the same mistake in the future. Thanks and have a lovely day! ~Pooch ♥
one focuses on changes in breathing during exercise while other on changes in heart rate
