Answer;
e) Alexandra is startled during a horror film
Step-by-step explanation;
The sympathetic nervous system is most likely to become active when Alexandra is startled during a horror film.
-Sympathetic nervous system is a part of the autonomic nervous system that is responsible for stimulating the fight-flight responses.
-During the fight-flight responses the sympathetic nervous system increases muscle blood flow and tension, dilates pupils, accelerates heart rate and respiration, and increases perspiration and arterial blood pressure.