A nurse is preparing to administer amoxicillin 25 mg/kg/day PO divided equal doses every 8 hr to a preschooler who weighs 43 lb. Available is amoxicillin suspension 250 mg/5 ml. How many ml should the nurse administer per dose? (Round to the nearest whole number.)
a) 4 ml
b) 5 ml
c) 6 ml
d) 7 ml