The best reason this passage would be part of the opening is this:
- It explains what issue is being discussed
<h3>What consists of the introductory part of an article?</h3>
The introductory part of an article is geared at helping the reader to understand the main point that will be discussed in greater detail in the course of the text.
In the text given above, the introduction is geared at helping a reader to know that the main matter being discussed is the MAD cow disease. They will thus prepare their minds to learn about this disease and its emergence in the United States.
For every introductory part of an article, the intent is often on helping the reader to have an overview of the topic to be discussed in greater detail. It sort of wets the appetite of the reader towards the main matter that ought to be deliberated upon. That is what this part of the text achieves. So, the option selected above is correct.
Learn more about the introduction of a text here:
brainly.com/question/25694589
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