Abdul, a manager at Chrysum Corp., was assigned the task of overseeing the operations in a foreign office for a week. Before leaving the country, Abdul recorded a message on his phone to inform callers that he was away from home and would return their calls when he returned. In this scenario, the technology used by Abdul is an example of:$$

Group of answer choices

$$voice mail communication.

$$social networking.

text messaging.$$

$$cellphone communication.