A ________ could be used to retrieve all the phone numbers from a student database.

• query

• record

• form

• table

...
Explanation: In order to retrieve all the phone numbers from a student database, a query could be used. A query is a request made to a database management system (DBMS) for specific information or data from a database. It is used to retrieve, update, and delete data from a database.

In this case, a query can be written to retrieve all the phone numbers from a student database. The query language used may depend on the type of database being used, such as SQL (Structured Query Language) for relational databases.

By using a query, you can specify the criteria for selecting the records to be retrieved from the database. For example, you could write a query to select all records from the "students" table where the phone number is not null, and then retrieve the phone numbers from those records. This would give you a list of all the phone numbers stored in the database for the students that have phone numbers associated with their records.

Overall, using a query to retrieve data from a database is an efficient and effective way to search for specific information, and it can save a lot of time compared to manually searching through the entire database.