Dead ball contact--NFHS

[JS 20]

Had this come up at our local meeting. Team A has a sideline throw in. BEFORE the official hands the ball to thrower A1, B2 strikes A3 with an elbow in A3's chest. Nothing flagrant, but he meant to do it. The calling official called an intentional. After looking it up in the book, it says this would be penalized with an "intentional technical". My question is, since the rule contains "intentional" does the offended player have to shoot? Or can anyone shoot? The book seems sort of contradictory and doesn't provide the definition/penalty of an "intentional technical". THanks!