Final answer:
An automatic telephone switch includes Memory, Service Logic, and a Controller. These components are necessary for the switch's operation, from storing important data and managing call processes to executing control functions. (option D)
Step-by-step explanation:
An automatic telephone switch includes all of the following components: Memory, Service Logic, and a Controller. These are essential for the switch to function properly and manage the routing of telephone calls. Memory is used to store the routing table, customer data, and other critical information. Service Logic refers to the software that manages how calls are processed, such as the steps to establish a call and different service features. Lastly, the Controller acts as the brain of the switch, executing the service logic and controlling the operations of the switch, including the management of call setup, supervision, and teardown.
An automatic telephone switch integrates memory for data storage, service logic for defining service-related rules, and a controller for overall management. Therefore, the correct answer is "D. All of the above," as each component contributes to the proper functioning of the automatic telephone switch.