You are presented with the question "An animal attacking another animal may cause" and the following answer choices: - dopamine to increase - hypothyroidism - cause their death - decrease stamina - adrenaline to surge - population movement - insulin decrease - growth hormone production Now knowing that threatening behavior causes a fight-or-flight response in animals and fear also causes adrenaline to surge, which is part of the fight or flight response, choose the best answer.
A:
adrenaline to surge