Intentional Foul?

[crosscountry55]

In an effort not to paralyze the OP with details....

You're right that you have two options. They are A) nothing due to incidental, or B) intentional technical (most officials just call it a "technical" but the distinction is important because you're learning and taking exams this time of year).

Based on your description, what you choose really depends on what you meant by "pushes."

Is it possible that A2 was simply slow to react to the whistle and was in the process of committing a normal common foul that was associated with making a play vice acting out in frustration? If so, I'd rule this incidental, but I'd take a few quick steps toward A2 and B2 to make my presence known in an effort to keep B2 from retaliating in case he felt "slighted." Great opportunity for good dead ball officiating here without necessarily imposing any penalties.

However, if A2 clearly should have known to stop on the whistle....but didn't, and/or you detect an unsporting or frustrated vibe from A2's push, then I'd whistle the "T" here. Because it's a T, any eligible member of Team B may shoot the free throws and we resume play with a throw-in to Team B at the division line opposite the table. Oh, and now that you have a foul before the AP throw-in is complete, the arrow is suspended until the next AP situation; whoever had it to begin with keeps it....it's like the held ball never happened.