1st question

Hey guys. Here is the first question for my contest. Remember, answer only if you commented on the registration post. You will have 2 days to answer this question (January 4th). If you get this question wrong, you are permanently out of the contest. Here it is!

What's the difference?

I forgot to mention, the prize will be a one month membership card. Be sure that you DON'T COMMENT ON THIS POST. Just email me at guarascpcheats@gmail.com since other people might copy and cheat. Good luck to all!