Kiesha was driving in her car when a tractor-trailer pulled out in front of her and almost caused an accident. Which branch of Kiesha's nervous system would be most responsible for the functioning of Kiesha's internal organs during this crisis?

A. Somatic

B. Sympathetic

C. Parasympathetic

D. Endocrine

Answer: B) Sympathetic

Explanation:

Sympathetic system is the part of nervous system through which involuntary response is generated in a stress causing or harmful events. Body tends to become alert and aware during these situation due to rapid increase in the flow of hormones.

According to the situation in the question, Keisha's sympathetic system must come into action during the accident causing situation due to hormone flow which can increase the heartbeat and freeze response.

Other options are incorrect because somatic system gives voluntary response. Parasympathetic system work in mode of rest and digest functioning. Endocrine system is responsible for generation of growth and development hormones.

Thus, the correct option is option (B).