In this task, you are given a context and four options. Each option is a suggested ending for the context. You should read the context and pick the best ending for the context. Please answer with "A", "B", "C", and "D".
Q: [header] How to cope with panic attacks [title] Do some grounding exercises. [step] When in the middle of a panic attack, it's likely you will struggle to breathe naturally. The best way to work through a panic attack is to turn your attention to your breathing. <sep> (A) You can simply take a few deep breaths in and out without feeling any pain. To perform a grounding exercise : [substeps] Reach under your desk and grab a book with a cover. (B) Here are some things to start with : [substeps] Get on the floor. Spread your feet apart, so that you are almost fully upright on all fours. (C) Focusing on your breath and learning to deepen it will help you relax and work through the panic attack. Breath awareness can end a panic attack and decrease their frequency overall. (D) Do these exercises for several minutes at a time : [substeps] Breathe in slowly, hold your breath for five seconds, then exhale. Breathe out slowly through your nose four times.
A:
C