Need another NFHS Ruling

[zebra5150]

OK everybody here is another one.......

1st and 10 for A at the B 41 yd. line. A comes to the line of scrimmage and A5, wearing No. 23, assumes a 3 pt. stance in a gap between the tackle and the end, with his helmet penetrating the plane created by the waist of the tackle. At the snap (a) A5 fires out and blocks tackle B9 below the waist, while the ball is still in the FBZ and B9 was on the line at the snap, or (b) A5 is in motion parallel to the line of scrimmage and 1 yd. behind it, or (c) A5 goes downfield and catches a forward pass and is downed at the B 27. Is there a foul? If so, what is it and how is it enforced?