What is a useful technique to prevent the formation of a vicious circle that leads to panic?

A useful technique to prevent the formation of a vicious circle that leads to panic is to focus on the physiological reaction and learn to decrease it through relaxation.
The tension and relaxation are states of the organism that correspond to two parts of the autonomic nervous system: the sympathetic and the parasympathetic.
The activation of the sympathetic nervous system is incompatible with the activation of the parasympathetic nervous system.
The learning of relaxation can be compared to learning other skills such as swimming, riding a bike, or driving a car.
a) Only I and II are correct.
b) Only II, III, and IV are correct.
c) Only I, II, and IV are correct.
d) All statements are correct.