Final answer:
Studying AIS includes development and operation of enterprise systems, processing of business events, and use of technology for financial reporting, but not online social networks.
Step-by-step explanation:
The subject of this question is Computers and Technology. The question is asking about studying AIS (Accounting Information Systems) and what it includes. The correct answer is C. online social networks, as studying AIS focuses on the development and operation of enterprise systems, the processing of business events, and the use of technology for financial reporting. Online social networks are not directly related to AIS.