2nd and long at midfield - an "obvious" passing down. Team A is in shotgun formation with 1 up-back and offensive line in wide splits. B has a three man line head up on both A tackles and A's center. Just before the snap, all three B linemen shift into the gaps. At the snap:
a) A-52 (the snapper) fires out with a low cut block to his left and whiffs, while nose tackle B-96 heads past him just as A-62 (guard) throws a high block that knocks B-96 partially sideways as he then "trips" over A-52 who is on the ground after whiffing on his initial block attempt, and B-96 then goes down hard backwards across A-52.
b) A-52 (the snapper) fires out with a high block to his left and almost completely misses nose tackle B-96, then "slides" down B-96 to his knees just as A-62 (guard) throws a high block that knocks B partially sideways as he then "trips" over A-52 who is still in his knees after almost missing the initial block attempt, and B-96 then goes down hard backwards across A-52.
c) A-52 (the snapper) fires out with a high block to his left and almost completely misses nose tackle B-96, then "slides" down the B player to his knees just as A-24 (back) comes up to the LOS and throws a low block that knocks B-96 backwards as he then "trips" over A-52 who is still in his knees after almost missing the initial block attempt, and B-96 then goes down hard backwards across A-52.
d) A-52 (the snapper) fires out with a high block to his left and almost completely misses nose tackle B-96, then "slides" down the B player to his knees just as A-24 (back) comes up to the LOS and throws a high block that knocks B-96 backwards as he then "trips" over A-52 who is still in his knees after almost missing the initial block attempt, and B-96 then goes down hard backwards across A-52.
Which of these, if any, would you flag as a chop block?