Intentional Foul on Made Basket

[IAUMP]

I was watching a Boys Varsity game last night and there was an interesting call that made the crew huddle for a couple of minutes. A1 stole the ball for a break away layup. During the shot B1 committed an intentional foul by pushing A1 in the torso, no play on the ball just two hands/arms in the A1s side. A1 made the basket. The officials awarded the basket, 2 free throws and the ball to A on the baseline. I think the discussion was if the should award 2 or 3 free throws. Since I am in my first year of basketball, I don't know which is correct and would like your opinions.