K Use the sets to find (DUE)NF Let D=(16,19,21), E=(16,18,19,20), and F=(15,17,18,19,21). Select the correct choice below and, if necessary, fill in the answer box to complete your choice. OA. (DUE)NF = {} (Use a comma to separate answers as needed) OB. The solution set is Ø.

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A:

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