The following are multiple choice questions (with answers) about medical knowledge.   **Question:** Predisposing clinical condition for endodontic flare up?   (A) Acute periapical abscess   (B) Acute apical periodontitis   (C) Asymptomatic necrotic pulp with periapical lesion   (D) Pain and swelling since the treatment
['(C) Asymptomatic necrotic pulp with periapical lesion <> answer', 'The following are multiple choice questions (with answers) about medical knowledge. <> instruction', '(A) Acute periapical abscess \n (B) Acute apical periodontitis \n (C) Asymptomatic necrotic pulp with periapical lesion \n (D) Pain and swelling since the treatment <> possible answers', '  Predisposing clinical condition for endodontic flare up? <> context@']