Physiological signs of stress include __________.

• A. Tensed muscles
• B. Difficulty concentrating
• C. Indecisiveness
• D. Anxiety

Answer: (A)

Tensed muscles are a primary physiological sign of stress. When an individual experiences stress, whether from an external situation or internal emotional turmoil, the body often reacts by entering a state of heightened alertness. This is part of the body's natural fight-or-flight response, where muscles may tense up in preparation for quick action. This muscle tension is a physical response to stress and can occur in various parts of the body, leading to discomfort or pain if the stress is prolonged.

Other options, while they may relate to stress, are more psychological or behavioral responses rather than strictly physiological ones. Therefore, the correct identification of tensed muscles as a physiological sign accurately reflects how the body reacts physically to stress.