Correct Answer: C

Rationale: The professional should identify that the student is using reaction formation as a defense mechanism. Reaction formation involves expressing opposite thoughts or behaviors to prevent undesirable thoughts from being expressed. In this scenario, the student's teasing and joking behavior towards the girl can be seen as a way to cover up or mask his true feelings or desires towards her. Displacement involves redirecting emotions from the original source to a substitute target; Projection involves attributing one's undesirable feelings to others; Sublimation involves channeling unacceptable impulses into socially acceptable activities. Therefore, in this case, the student's behavior aligns most closely with reaction formation.

Correct Answer: C

Rationale: The student is most likely experiencing the stage of exhaustion. In this stage, the body's exposure to stress has been prolonged, and adaptive energy has been depleted. As a result, diseases of adaptation, such as the recurrent sinus infection in this case, are more likely to occur. The alarm reaction stage is the initial stage of the stress response, where the body perceives a threat and activates the fight-or-flight response. The stage of resistance is when the body tries to adapt and cope with the stressor. The fight-or-flight response is the immediate reaction to a perceived threat, involving physiological changes to prepare the body to either fight the stressor or flee from it.

Correct Answer: B

Rationale: The correct answer is B: Increased heart rate. During the fight-or-flight response, the sympathetic nervous system is activated, causing the release of epinephrine. This hormone triggers an increase in heart rate to supply more blood to the muscles for a rapid response. Pupil dilation occurs to enhance vision in preparation for quick reactions. On the other hand, salivation and peristalsis decrease as the body prioritizes functions necessary for immediate action rather than digestion-related activities. Therefore, choices A, C, and D are incorrect as they do not align with the typical physiological changes associated with the fight-or-flight response.

Correct Answer: B

Rationale: The correct answer is B: 'How you reacted to past experiences influences how you feel now.' This response is appropriate because past experiences can shape an individual's current response to stress. It acknowledges the impact of learned patterns and coping mechanisms on one's current adaptation to stressors. Choice A is incorrect because genetics can play a role in temperament to some extent. Choice C is incorrect because while physical health can contribute to stress management, it is not the sole determinant of stress levels. Choice D is incorrect as stress is not always avoidable, but coping mechanisms can help manage and reduce its impact.

Correct Answer: B

Rationale: In this scenario, the student being overly concerned about not being able to afford horseback riding lessons indicates that the problem is personally relevant to her. Psychological stressors related to self-esteem and self-image are influenced by how an individual perceives a situation or event. Adolescents, in particular, place significance on self-image and feeling entitled to experiences that other adolescents have, which can lead to distress when such desires are not met. Choice A is incorrect because there is no indication that the student's physical well-being is at risk. Choice C is incorrect as it simplifies the issue by attributing it solely to immaturity. Choice D is incorrect as there is no evidence provided that the problem is beyond the student's coping abilities.