Flo is a defender on her school’s soccer team. When a ball is kicked at her, she sees it and determines how quickly it is coming at her and at what angle. She takes a few steps forward in order to have the ball land at her feet, then kicks it away. In this situation, Flo used

her CNS and PNS.
her CNS only.
her somatic system only.
her somatic and autonomic systems.