The excerpt helps the authors arrive at their conclusion by providing statistical evidence, which is seen through the use of percentages, as stated in option C.
<h3>What is statistical evidence?</h3>
We have statistical evidence in a text when we provide information about large quantities of people or things in numerical form. In the excerpt we are analyzing here, we have statistical evidence whenever they mention percentages such as "95 percent" or "80 and 90 percent."
The use of such numerical data or statistical evidence helps the authors arrive at their conclusion, which means option C is the correct answer.
Learn more about evidence here:
brainly.com/question/27567090
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