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A purring cat rubs up against its owner's wool pants. When the cat stops, it is still happy, but its fur is standing on end. What is happening?
A. The strands of the cat's fur are repelling one another.
B. The strand of the cat's fur are attracting one another.
C. The cat's fur caused a static discharge on the wool pants.
D. Electrons suddenly jumped from the wool pants to the cat's fur.
What is A. The strands of the cat's fur are repelling one another.