Luz, who is skydiving, is traveling at terminal velocity when she changes position by going headfirst toward the ground.

what happens to her motion? she will continue to fall at the same terminal velocity because gravity has not changed.
she will slow down because the air resistance will increase and be greater than gravity.
she will speed up because air resistance will decrease and be less than gravity.
she will begin to fall in free fall because she will have no air resistance acting on her.