[rwanger]

At first I was thinking that it was a cheap shot by player C. But what if he was looking away from the table and not paying attention until the action was on him? Then clearly it's not an "angle".

I think since the dealer said it, and the original raiser did not say "No no, I call"...it looks like a raise.

Any player who hasn't looked at his/her cards could say "I'm sorry, that was just a call" and they wouldn't be giving anything away.