Each semester,Bob does not start studying until just before midterms. Then he is forced to work around the clock until after final exams,which makes him sick,probably because he is in the ________ phase of the ________.

A) alarm; post-traumatic stress syndrome
B) resistance; general adaptation syndrome
C) exhaustion; general adaptation syndrome
D) depletion; post-traumatic stress syndrome

Bob's behavior and symptoms suggest that he is in the exhaustion phase of the general adaptation syndrome. This phase occurs after prolonged exposure to stressors and can manifest in physical and emotional symptoms such as sickness, fatigue, and irritability. Post-traumatic stress syndrome and depletion are not explicitly referenced in the scenario and do not fully capture the range of symptoms Bob is experiencing. The resistance phase (Option B) typically occurs after the body initially responds to stress and does not align with Bob's procrastination and subsequent stress-related health issues.