The correct answer is D. suppression of growth.
Adaptive physiological changes that occur in response to acute stress include suppression of cardiovascular tone, suppression of digestion, and suppression of the immune system. These changes are part of the body's stress response, which is activated when the body perceives a threat or challenge.
During the stress response, the body releases hormones such as adrenaline and cortisol, which help to prepare the body for "fight or flight." This can involve a number of physiological changes, including:
Suppression of cardiovascular tone: The body's blood vessels constrict and the heart rate and blood pressure increase, which helps to increase blood flow to the muscles and brain.
Suppression of digestion: The body's digestive system slows down or shuts down to redirect energy to other systems that are necessary for responding to the perceived threat.
Suppression of the immune system: The body's immune system is suppressed to redirect energy to other systems that are necessary for responding to the perceived threat.
However, suppression of growth is not an adaptive physiological change that occurs in response to acute stress. Instead, chronic stress has been shown to have negative effects on growth and development, particularly in children and adolescents.