<prompt> Please answer with one of the option in the bracket. Write reasoning in between . Write answer in between .Q:A 52-year-man is brought to the physician because of a 2-week history of memory loss. Three weeks ago, he had a cardiac arrest that required cardiopulmonary resuscitation and intravenous epinephrine. On mental status examination, he cannot recall objects shown to him 20 minutes earlier but vividly recalls memories from before the incident. The remainder of the examination shows no abnormalities. Which of the following structures of the brain is most likely affected?? A: Purkinje cells of the cerebellum, B: Microglial cells of dorsal midbrain, C: Internal pyramidal layer of the amygdala, D: Pyramidal cells of the hippocampus, E: Astroglial cells of the putamen,  <response>: This is a clinical vignette describing a 52-year-old man with recent onset memory loss after surviving a cardiac arrest requiring CPR and epinephrine. The key finding is a selective inability to form new memories anterograde amnesia with intact recall of past memories retrograde memory. This pattern localizes the lesion to the hippocampus, which is crucial for memory formation but not storage.D: Pyramidal cells of the hippocampus 