"What are you guy is"? Mail in your apostrophe key.

Possessive, as in "What are the thoughts belonging to 'you guys" (ok, technically should have been "_guys'_") It was a typo, not improper grammar thought. (Though I guess it means I should proof read better.)

Yea, what you said sounds a lot like it is choice (a), but that Universal quote almost makes it sound like they want it to be (c).