The following are multiple choice questions (with answers) about medical knowledge.   **Question:** Deepest layer of deep cervical fascia is   (A) Prevertebral   (B) Carotid sheath   (C) Pretracheal   (D) Temporal
['(A) Prevertebral <> answer', 'The following are multiple choice questions (with answers) about medical knowledge. <> instruction', '(A) Prevertebral \n (B) Carotid sheath \n (C) Pretracheal \n (D) Temporal <> possible answers', '  Deepest layer of deep cervical fascia is <> context@']