Answer: C) Sympathetic
Explanation: Sympathetic nervous system is the part of nervous system that is responsible for inducing the feeling of anxiety,rapid breathing, tension, heart rate increment , more sweat etc. in the body when they are nervous in any situation.
Jaydra is also facing a situation where she is tensed and has high rate of heart beat which is caused by her sympathetic nervous system during the night time situation.
Other options are incorrect because parasympathetic nervous system works by functioning of resting and digesting. Central nervous system is used for managing the maximum of body functioning. Somatic nervous system basically work for voluntary movement of muscles.
Thus, the correct option is option(C).