Answer:
Check to see if it provides references and statistics.
Step-by-step explanation:
A friend won't definitely know if the information is factual, so that possibility is ruled out. If other sources don't provide the same information, you can't really be sure as to which source is wrong and if readers' can edit information, you aren't exactly sure what they will input. Therefore, the answer is the second option Check to see if it provides references and statistics.
Hope this helped! :)