The following are multiple choice questions (with answers) about medical knowledge.   **Question:** Which of the following is not removed in radical neck dissection   (A) Sternocleidomastoid muscle   (B) Digastric muscle   (C) Spinal accessory nerve   (D) Internal jugular vein
['(B) Digastric muscle <> answer', 'The following are multiple choice questions (with answers) about medical knowledge. <> instruction', '(A) Sternocleidomastoid muscle \n (B) Digastric muscle \n (C) Spinal accessory nerve \n (D) Internal jugular vein <> possible answers', '  Which of the following is not removed in radical neck dissection <> context@']