input: The following are multiple choice questions (with answers) about medical knowledge.   **Question:** Optimal location for intra osseous anesthesia for mandibular second molars is   (A) Distal to the molar   (B) Mesial to the molar   (C) In the furcation area   (D) Apical perforation and injection
output: ['(B) Mesial to the molar <> answer', 'The following are multiple choice questions (with answers) about medical knowledge. <> instruction', '(A) Distal to the molar  (B) Mesial to the molar  (C) In the furcation area  (D) Apical perforation and injection <> possible answers', '  Optimal location for intra osseous anesthesia for mandibular second molars is <> context']