Answer:
C. hormones
Step-by-step explanation:
Cortisol and adrenaline are hormones that are released during the stress response, and they can affect many of the body's systems, such as the cardiovascular and nervous systems. These hormones are part of the body's fight-or-flight response, which is a physiological response to a perceived threat or danger. When the body is under stress, the adrenal glands release these hormones, which can increase heart rate, blood pressure, and blood sugar levels. This can help the body prepare to face a threat or to flee from danger.