In the ED, a 68-year-old with suspected septic shock has MAP 54 mmHg after 30 minutes, lactate 5.2 mmol/L, BP 82/48. Which immediate bundle-aligned step is correct after obtaining blood cultures?AStart narrow-spectrum antibiotics after ID consultBInfuse 10 mL/kg crystalloid and recheck in 6 hoursCTarget MAP >75 with phenylephrine firstDAdminister 30 mL/kg IV crystalloid and start norepinephrine to target MAP ≥65EWait for lactate to normalize before vasopressorsCheck my answer