When used in conjunction with SQL, a server-side language (such as PHP) and a database (such
as mySQL), AJAX can perform which of the following database operations?

A.
Update the database schema and table relationships

B.
Create custom database views and stored procedures

C.
Modify database security permissions, including changing the database owner

D.
Retrieve information from a database and display it back to the page originating the request

Explanation: