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Using DNA technology, the FDA traced the exact type of salmonella back to a company called Peanut Corporation of America, that was likely not diligent enough in its testing and cleanliness. The company has since gone out of business.( Choose the correct definition of Red Word)
A.
necessary because a law or someone in authority says you must
B.
being an essential part of something
C.
hardworking in a careful and thorough way
D.
dirty or harmful because of dirt, chemicals, or radiation