Question: Mr. Wilson, aged 78 years, has been leading a normal and fully functional life. He comes to you in your primary care office complaining of depression and occasional confusion and tinnitus. His wife reports that he is becoming increasingly isolated, does not want to socialize, and exhibits other behavioral changes. Sometimes he does not follow direct commands. Differential diagnosis to consider include Question options: 1) presbycusis , depression, dementia, and labyrinthitis 2) dementia, labyrinthitis , and post viral syndrome 3) neurological impairments, depression, and presbycusis 4) depression, dementia, and senile ectropion