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Which statement is a specific example of how artificial selection is used in society?

A. The nucleus of a cow's skin cell is inserted into an egg cell from a female cow.


B. Genes are spliced from a bacterial cell and inserted into a cell of an apple tree.


C. Pesticides applied to beetles yield a pesticide-resistant population of beetles.


D. Two racehorses with desirable traits are bred to produce a superior racing horse.