Task: Question Answering
Input (English): Question: Mr. G. A., caregiver of his wife who suffers from Alzheimer's Disease, consults his nurse because it has started with disruptive behaviors, shouting and wandering. Point out the correct answer regarding this type of behavior: 
 Options:  <1> They are unavoidable and unpredictable. <2> They depend solely on anatomical alterations. <3> Always try to make the patient reason about their failures. <4> They can be a way of expressing insecurity or frustration on the part of the patient. <5> Pharmacological treatment is the first option to reassure the patient.
Output (English): 4