A nurse is caring for a client who has a new prescription for total parenteral nutrition (TPN). The client is to receive 2,000 kcal per day. The TPN solution has 500 kcal/L. The IV pump should be set to how many mL/hr (Round to the whole number)

a) 250 mL/hr
b) 400 mL/hr
c) 500 mL/hr
d) 1,000 mL/hr