How does the first sentence of the second paragraph affect the reader's understanding of the rest of the passage?
A.
It gives just enough information to make the reader want to keep reading.
B.
It shows the reader that we have been unable to understand popcorn until today.
C.
It prepares the reader to think about what makes a kernel of popcorn pop.
D.
It explains how popcorn pops so the reader knows it is not the result of angry gods.
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