Roughing the Passer Enforcement

[BayouUmp]

Sit:

"Second and 5 at the 50. Roughing the passer is called on B1. During the play, A2's pass was complete to A3 who advanced to B's 10 where A3 fumbled the ball which then rolled out of bounds through B's end zone. Ruling: If accepted, team A would play first and goal at B’s 5. "

This is true if the fumble through the EZ doesn't constitue a change of possession (i.e. touchback)? 10-5-5

If the fumble constitute's change of possession, then enforce from previous spot and A would play 1/10 from B's 35?

Thanks for your comments: