A nurse is monitoring a client who is in the alarm stage of General Adaptation Syndrome (GAS). Which finding should the nurse expect?

A. During the alarm stage, the sympathetic nervous system is activated, leading to increased heart rate. B. The alarm stage typically enhances mental alertness due to increased adrenaline levels. C. Blood glucose actually increases in response to stress hormones like cortisol and epinephrine. D. These are classic responses in the alarm stage due to activation of the fight-or-flight response.