Situation

[PSU213]

OK, I want to make sure I'm not going brain dead on this situation, and I won't give my answer, as a don't want to "bias" the "jury." I had NF rules in mind, but NCAA rulings are more than welcome (just specify which, if there is a difference in the ruling).

1/10 from A's 20. A1 throws a screen pass that is caught by A2 at A's 15 yard line (legal forward pass). A2 then fumbles at A's 18 yard line, then recovers the ball at the 18 and runs out to the 50. After the pass was caught, but before A2 fumbled, A3 held B1 at A's 25 yard line. Ruling?

Thanks in advance.