Answer:
The correct answer will be C. Google android.
Explanation:
Google android is a type of operating system based on open source software and modified version of Linux kernel. So it will really helps the system to join a domain. It will allow to expand or explore the network with authentication properly and obviously opens you to all the security.
The other three options doesn't have any relation with the domain :
Microsoft office (a software),
Microsoft surface R.T (a device) and
iPad (also a device)
So, option C is the correct answer.
