This is a test of commonsense with single/multi-choices. Complete the next sentence:

How to get free virus protection software
Find out which version of windows you are running.
In general, most free anti-virus programs are intended for use with windows operating systems; however, new versions are updated for the latest windows versions.
For example, if you are still running windows xp, make sure you do not download a version only intended for windows 8 and higher.

Select from the following. (a). Read the reviews carefully before downloading. Tech websites go into detail about how to avoid paying for upgrades that you don't want and other common pitfalls. (b). Check the ip address of your operating system. A first step in getting free virus protection software is to get an ip address to support the software you are running. (c). Connect your windows operating system to your computer using a usb cable. Once the computer is connected, it will be opened by the name windows 8 or higher. (d). If this is the case, you may need to do a trial run for another version. Restart your computer and run the software.
The answer is:
(a).