input: The following are multiple choice questions (with answers) about medical knowledge.   **Question:** Distolingual extension of the mandibular impression for  a complete denture is limited by the action of:   (A) Stylohyoid muscle   (B) Medial pterygoid muscle   (C) Lateral pterygoid muscle   (D) Superior constrictor muscle
output: ['(D) Superior constrictor muscle <> answer', 'The following are multiple choice questions (with answers) about medical knowledge. <> instruction', '(A) Stylohyoid muscle  (B) Medial pterygoid muscle  (C) Lateral pterygoid muscle  (D) Superior constrictor muscle <> possible answers', '  Distolingual extension of the mandibular impression for \na complete denture is limited by the action of: <> context']