technical fouls

[readingofficial]

I have Two questions

1. A-1 is driving toward the basket for an apparant goal when the official, while trailing the play advancing in the direction in which the ball is being advanced, is cursed by the Head coach of Team B. How should the official rule this situation?
2. A-1 is driving toward the basket. B-1 is in legal guarding position. As play progresses, B-1 acting as though charged, falls to the floor. The official rules a technical foul on B-1. Is the official correct?