Instructions: 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".
Input: [header] How to heal gums after a tooth extraction [title] Bite tightly on the gauze. [step] After a tooth extraction, your dentist will place a gauze on the wound to stop the bleeding. Make sure to bite down tightly on the gauze to apply pressure to the area to stop bleeding. <sep> (A) Applying too much pressure or twisting your jaw violently can cause additional bleeding. [substeps] Other dental care strategies for bleeding include using warm water to keep the gauze clean and dry and cover gauze with a bandage as an extra cushion. (B) [substeps] If a tooth extraction is required, your dentist will prescribe you a regular prescription that you can take on your own. This can be useful for at a later date if the wound is uncomfortable and gets infected. (C) If heavy bleeding continues, you may need to reposition the gauze pack to cover the wound more directly. [substeps] Do not talk, as this may loosen the gauze and lead to further bleeding and delay the clot formation. (D) [title] Apply pressure for as long as the recovery time calls for. [step] For the first month after a tooth extraction, expect to experience little or no pain.
Output:
C