A 17 year old boy is admitted to the hospital after a road traffic accident. Per abdomen examination is normal. After adequate resuscitation, his pulse rate is 80/min and BP is 110/70 mmHg. Abdominal CT reveals 1 cm deep laceration in the left lobe of the liver extending from the dome more than half way through the parenchyma. Appropriate management at this time would be -
Conservative treatment
Abdominal exploration and packing of hepatic wounds
Abdominal exploration and ligation of left hepatic artery
Left hepatectomy