A 25-Year-Old Woman Suffered Severe Brain Injury After Her Commuter

A 25-year-old woman suffered severe brain injury after her commuter train derailed. For weeks after the impact, she experienced episodes of agitation, dystonia, tachycardia, hypertension, and hyperthermia. Her caretakers note that the events are triggered by the doorbell, telephone, and alarm clocks. The symptoms experienced by this woman are mostly likely caused by which of the following?

A) Increased parasympathetic activity
B) Decreased parasympathetic activity
C) Increased sympathetic activity
D) Decreased sympathetic activity