Type duplicates of a row in a table customer with non-uniform key field customer no. A. delete from customer where customer no. exists (select distinct customer no. from customer having count) B. delete customer a where customer no. in (select customer b where customer no. equal to b customer no.) and a rowid > b rowid C. delete customer a where customer no. in (select customer no. from customer a, customer B. D. none of the above C LANGUAGE

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