Final answer:
The best attitude for attaining relaxation is being positive and calm. Aggressiveness and anxiety hinder the process, while calmness can be enhanced through practices like meditation and mindful awareness.
Step-by-step explanation:
The best attitude for attaining relaxation is c) Positive and calm. Possessing a positive and calm demeanor helps to reduce stress, minimize anxiety, and facilitates a relaxed state. On the contrary, being aggressive or anxious is counterproductive to relaxation. Techniques that promote relaxation often include positive and calm cognitive processes like meditation, mindful awareness, and progressive relaxation. It's also worth noting that the central route to persuasion, which involves deliberate and thoughtful consideration of the information presented, requires the audience to be analytical and motivated. Meanwhile, according to the Eysencks' theory, individuals who score low on neuroticism and high on stability are more likely to be calm and relaxed.