[The_Rookie]

Couple of scenarios on throw ins:

1) A1 has ball for throw in under his basket:

a) B1 crosses the plane and hits A1 on arm

b) A1 extends ball over the plane to in-bounds side and B1 hits his arm

c) A1 extends ball over the plane in-bounds side and b1 hits the ball only

Rulings in each case?

Thanks!