Which of the Following Is False Concerning the Use of Lithium

Which of the following is false concerning the use of lithium?

A) Individual differences in the rate with which people absorb lithium make getting the proper dosage important
B) The difference between an effective dose verses a toxic dose is small and that leaves a narrow window of therapeutic effectiveness
C) It is relatively safe for people taking lithium to monitor their own intake
D) Side effects of lithium tend to be annoying to those taking the medication