Use of opposite AILERON to lift a dropping wing during a stall is dangerous because

Choices

• ailerons reverse during stall.

  Ailerons don't reverse — they become less effective and create asymmetric drag/lift.

• ✓ the down-going aileron increases AoA on that wing tip while it's already stalled.correct

  deepening the stall on that wing and accelerating autorotation into a spin. The correct input is opposite RUDDER plus reducing AoA (forward elevator). Ailerons increase AoA on the wing where they deflect down. If a wing has dropped because of asymmetric stall, the down-going aileron on that side LOWERS the wing tip's apparent angle relative to airflow but in actual AoA terms makes things worse for an already-stalled wing — accelerating autorotation. The correct fix: rudder opposite drop direction (to stop yaw) + forward elevator (to reduce AoA on both wings).

• the airplane will roll inverted.

  Inverted roll isn't the typical spin-entry direction.

• ailerons stop working at stall.

  Ailerons still work, but ineffectively and dangerously near stall.