I thought this one was easy...

[youngump]

So unless some lurker wants to support the other position everyone is with me on D here, yes?

The clinician was arguing for A. Support from others in the room was that the coach should know to send her and the rules only called for making the ball dead if an obstructed runner is put out. Not trying to defend the interpretation but 8-5-B calls for a delayed dead ball. 8-5-B-1&2 call for the ball to become dead. 8-5-B-3 indicates that the ball will remain alive. 8-5-B-4 doesn't say anything about the status of the ball. And it appears this is where you can get to answer A.

If I understand who was there correctly, the State Commissioner, State UIC, and all but one of the deputy UICs were there running the clinic. The clinician was one of the latter.
8-5-B-4 Effect 1 has always seemed pretty clear to me but insofar as it wasn't convincing to these folks, is there a case play or rule clarification or something that makes it even clearer?