A 28‑year‑old with type 1 diabetes presents with DKA: pH 7.15, bicarbonate 10 mEq/L, anion gap 22, serum potassium 2.9 mEq/L. After 1 L isotonic saline, what is the next best step?AStart IV insulin infusion 0.1 units/kg/h immediatelyBGive sodium bicarbonate infusion until pH ≥7.3CAdminister IV potassium to ≥3.3 mEq/L before starting insulinDSwitch to half‑normal saline and add dextrose nowEStart subcutaneous rapid‑acting insulin every 2 hoursCheck my answer