Answer:
The correct answer is - 1) a. improved, 2) a. adrenaline.
Explanation:
The cortisol level of the person is increase in the case of body activity which leads to the improve in the adrenaline level in the blood which is the
Competition or event also helps in triggers the adrenal glands to release cortisol and release of the adrenaline. Cortisol is the major hormone which involved in stress condition and affects the the fight-or-flight response.
The release of the adrenaline helps in dangerous or stress condition that help in the improvement of the conditions.
Thus, the correct answer is - 1) a. improved, 2) a. adrenaline.
