What is one problem you should keep in mind when researching information on the internet?
a. information found on the internet may be unreliable.
b. library staff usually keep internet computers locked.
c. information is seldom available on the internet.
d. you should avoid using search engines when you're searching for information on the internet.

The answer is A due to the internet being a plethora of information being accessed by anyone and everyone with internet access. Any person of no background to certain information could claim mastery to the field and sway his/her audience to ways possible. Ensuring that the source of the information being read is from credible and reputable companies. You can do this by ensuring the information is from newspapers with names known all over the world or there are also sourced footnotes from the author where they could have cited some information from other articles. 

Information found on the Internet may be unreliable is one problem you should keep in mind when researching information on the Internet.
So the answer is A. Information found on the Internet may be unreliable.

you, i'm trying to get a higher rank, this really ! : )

~kay