When people are faced with stressful situations, an array of symptoms get triggered including an increase in stress hormones, increased heartbeats, raised blood sugar level, and sweating and tensing of muscles. These symptoms are part of the “fight or flight” response. - Which part of the nervous system gets activated during such stressful situations?

A. Sympathetic nervous system
B. Parasympathetic nervous system
C. Both sympathetic and parasympathetic nervous systems
D. First the parasympathetic followed by the sympathetic nervous system
E. The “fight or flight” response is controlled by the endocrine system only.