Which of the following drugs should produce the smallest AUC after iv administration of similar doses of each drug ? Quinidine (half life 6 hr, Vd 3 L/kg), lidocaine (half life 1.5 hr, Vd 1.3 L/kg), procainamide (half life 3 hr, Vd 1.9 L/kg) and propranolol (half life 4 hr, Vd 5 L/kg).