Which Safety Precaution Is Most Important to Teach an Older

Which safety precaution is most important to teach an older adult who is prescribed chlorpromazine (Thorazine) ?

A) "Avoid going barefoot,even in the house."
B) "Change positions slowly when rising to stand."
C) "Drink plenty of water to avoid having to strain during a bowel movement."
D) "Use a thermometer to check the temperature of your bath water to avoid a scald injury."