The beginning of a line is labeled Exposition. The line slowly rises and is labeled Rising action. The highest point of the line is labeled Climax. The line quickly decreases and is labeled Falling action. The end of the line is equal to the beginning and is labeled Resolution. Which line from "Revolution 2137” belongs at "Exposition” on the plot line?

a)As she scrubbed the kitchen floor, Lena thought back to the day when everything had changed.
b)“Robots are powerful,” Lena thought as she worked on a hand grip.
c)Lena knew that her plan was working on the next rainy day that she was sent out for supplies.
d)After the library was destroyed, Meg and Lena did not meet for weeks.
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