Final answer:
C.Microphone and loudspeaker. Mic and loudspeaker are both audio devices that are commonly found in many electronic devices.
Step-by-step explanation:
The subject of this question is Computers and Technology and it is suitable for Middle School students.
The correct answer to the question is C. Microphone and loudspeaker.
Mic and loudspeaker are both audio devices that are commonly found in many electronic devices. You can often find them built into devices like smoke alarms and thermostats or in the form of small plug-ins.