The following are multiple choice questions (with answers) about medical knowledge.   **Question:** Point used as termination of Root canal procedure is   (A) Apical constriction   (B) Apical foramen   (C) Both   (D) None
['(A) Apical constriction <> answer', 'The following are multiple choice questions (with answers) about medical knowledge. <> instruction', '(A) Apical constriction \n (B) Apical foramen \n (C) Both \n (D) None <> possible answers', '  Point used as termination of Root canal procedure is <> context@']