Directions: The underlined part the following sentence may have an error of grammar or syntax. The part has been rewritten in options (B) to (E) in four different ways - (A) being an exact restatement of the underlined part. Pick up the option (B) or (C) or (D) or (E) that corrects the error in the underlined part, if any. If there is no error, mark (A).
Using the techniques employed by genetic engineering, a new species of microorganism has been developed by laboratory scientists to aid in cleaning up oil spills by digesting the oil.
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