Final answer:
Option c accurately describes acute hormone secretion, where hormone levels remain constant and spike under stress. This reflects the body's regulation of hormones through various stimuli including stress, and fits the definition of acute hormonal responses triggered by specific conditions.
Step-by-step explanation:
The option that illustrates acute hormone secretion most accurately is: c. Blood levels of hormone C are relatively constant but will increase dramatically under some stressful situations but not as much under other stressful situations. Hormone secretion is often regulated by negative feedback mechanisms, which maintain hormone concentrations within a narrow range for homeostasis. However, under certain conditions, such as stress, there can be an acute increase in hormone levels. Different types of stimuli—humoral, hormonal, and neural—can trigger these variations in hormone levels. The acute release of hormones like glucocorticoids during stress is an example of how hormone levels can dramatically increase in response to certain stimuli.