Answer: D."Orthostatic hypotension is a serious concern for elderly patients. Older adults also tend to experience lower BP after meals. Therefore vasoactive medications, such as enalapril should not be given with meals. BP also tends to decrease at night, so bedtime would also not be the best time choice for the elderly patient with hypertension. Review action of drugs and changes in cardiovascular system in elderly adults to determine best timing for this drug."