The logical data structure with a one-to-many relationship is a :

A. update files B. print files on paper C. data entry D. All of the above E. None of the above

A. tree B. relational C. network D. chain E. All of the above

A. database design B. backing up the database C. performance monitoring D. user coordination E. All of the above

A. Print B. Sort C. Look-up D. All of the above E. None of the above