A client of Asian ethnicity asks the nurse why the client's dose of antipsychotic medication is ...

A client of Asian ethnicity asks the nurse why the client's dose of antipsychotic medication is effective at a lower dose than for other clients who are mostly from European backgrounds. Which nursing response is correct?
 
  A) Often people of Asian ethnicity have lower metabolic rates and need lower amounts of medication.
  B) There is no correlation between ethnic background and the amount of medication someone receives.
  C) Asians are rapid metabolizers of medications and have fewer side effects.
  D) People of European ethnicity have more side effects from medication than do those of Asian ethnicity.