I vote C. I believe after a throw-in is released, the defense can touch the ball where ever it is. If there is another player oob, the ref has to judge if the release is a pass to the player oob or a release in-bounds. If between players oob, I would call a T. A ball passed between players oob is not a throw-in. I also can see various interpretations of this situation based on how the rules are worded. They are not explicit enough. My interpretations come from reading all applicable rules and deriving the intent, where not explicitly defined.
Some refs would call a T, based on one rule, but ingnoring references to similar actions as a violation. That is their choice, I just happen to read the interpretation differently (and, I think I am right).
