Answer:
The correct answer is option (A) Roll-up summary fields
Explanation:
Solution
The feature the administrator needs to use to meet this requirement is by applying Roll-up summary fields.
A roll-up summary field :A roll-up summary field computes or determine values from associated records, for example those in a linked list. one can develop a roll-up summary field to d a value in a master record by building the values of fields in a detail record.
