An-owner-member set in the CODASYL specifications may have A. only one owner but many owner occurrences B. only one member but many member occurrence C. more than one member but only one occurrence per member D. All of the above E. None of the above

The correct answer is: A. only one owner but many owner occurrences.

An owner-member set is a relationship between two entities, where one entity (the owner) can have multiple instances of the other entity (the member). For example, a “student-course” set could have one student as the owner and multiple courses as the members.

The owner-member set in the CODASYL specifications may have only one owner but many owner occurrences. This means that a single student can be enrolled in multiple courses, but each course can only have one student enrolled in it.

Option B is incorrect because a member can have multiple occurrences. For example, a student can be enrolled in multiple courses.

Option C is incorrect because an owner can have multiple occurrences. For example, a single student can be enrolled in multiple courses.

Option D is incorrect because only option A is correct.

Option E is incorrect because option A is correct.