Guesses to answers are OK, but make sure you specify that your answer is an educated guess. If you provide a solid answer, please provide a source, or a decent amount of explanation, not just a one word answer.
A quick word on blocking ads
It looks like you are using an ad blocker. That's okay. Who doesn't? But without advertising revenue, we can't keep making this site awesome. Click the link below for instructions on disabling adblock.
