An 83-year-old male client, who was recently admitted for a dementia workup, has been striking out ...

An 83-year-old male client, who was recently admitted for a dementia workup, has been striking out at nursing staff.
 
  His wife, who is terribly upset by his recent behavior, states, I just don't understand what has gotten into him, he used to be so kind and gentle. The nurse's best response for explaining the etiology of violent behavior is which of the following? 1. The disease process associated with dementia causes a person to become violent.
  2. Scientists have linked violent behavior to the genetic mutation of a specific Y chromosome.
  3. The renowned psychoanalyst Freud says that it is instinctive for humans to express depression in aggressive ways.
  4. There is no simple explanation for aggressive behavior, but research suggests it is caused by a combination of biologic and psychosocial factors.