input: The following are multiple choice questions (with answers) about medical knowledge.   **Question:** A 56-year-old patient is being treated with oral amoxicillin for community-acquired pneumonia. The plasma clearance of the drug is calculated as 15.0 L/h. Oral bioavailability of the drug is 75%. Sensitivity analysis of a sputum culture shows a minimal inhibitory concentration of 1 μg/mL for the causative pathogen. The target plasma concentration is 2 mg/L. If the drug is administered twice per day, which of the following dosages should be administered at each dosing interval to maintain a steady state?   (A) 270 mg   (B) 480 mg   (C) 240 mg   (D) 540 mg "
output: ['(B) 480 mg <> answer', 'The following are multiple choice questions (with answers) about medical knowledge. <> instruction', '(A) 270 mg  (B) 480 mg  (C) 240 mg  (D) 540 mg" <> possible answers', '  A 56-year-old patient is being treated with oral amoxicillin for community-acquired pneumonia. The plasma clearance of the drug is calculated as 15.0 L/h. Oral bioavailability of the drug is 75%. Sensitivity analysis of a sputum culture shows a minimal inhibitory concentration of 1 μg/mL for the causative pathogen. The target plasma concentration is 2 mg/L. If the drug is administered twice per day, which of the following dosages should be administered at each dosing interval to maintain a steady state? <> context']