During a jump ball, if A-1 taps the ball and it deflects off A-2 and B-2, what should the official do?

In the scenario where A-1 taps the ball during a jump ball and it subsequently deflects off A-2 and B-2, the correct action for the official is to re-jump with the original jumpers. This situation occurs because the jump ball is meant to determine initial possession, and if the ball has not been clearly established in favor of one team and is instead deflected, it indicates that the possession has not definitively changed. A jump ball is a specific situation within the game where two opponents have the opportunity to gain control over the ball simultaneously.

When the ball only deflects without establishing possession, the integrity of the initial jump must be maintained, leading to a re-jump. This ensures that the process to fairly determine possession is upheld without the bias or influence of the deflections from the players involved. Thus, maintaining the original jumpers and the officials' adherence to these rules ensures that the game is played fairly and according to the established guidelines.