input: The following are multiple choice questions (with answers) about medical knowledge.   **Question:** A surgeon decides to operate a patient under epidural anesthesia. 3% Xylocaine with adrenaline is used for administering epidural anesthesia. The patient suddenly develops hypotension after 3 minutes of administration. What is the most likely cause for this?   (A) Systemic absorption of the drug   (B) Vasovagal effect   (C) Allergy to the drug preparation   (D) Penetration into the subarachnoid space
output: ['(D) Penetration into the subarachnoid space <> answer', 'The following are multiple choice questions (with answers) about medical knowledge. <> instruction', '(A) Systemic absorption of the drug  (B) Vasovagal effect  (C) Allergy to the drug preparation  (D) Penetration into the subarachnoid space <> possible answers', '  A surgeon decides to operate a patient under epidural anesthesia. 3% Xylocaine with adrenaline is used for administering epidural anesthesia. The patient suddenly develops hypotension after 3 minutes of administration. What is the most likely cause for this? <> context']