<prompt> Please answer with one of the option in the bracket. Write reasoning in between . Write answer in between .Q:A 45-year-old woman comes to the physicians office with complaints of clumsiness. She feels like she is tripping over her feet more often, and she recently fell and sprained her wrist. Her medical history is significant for well-controlled diabetes. She has been a strict vegan for over 20 years. She lives at home with her husband and two children. On exam, she appears well-nourished. She has diminished proprioception and vibration sense in both her feet. She has a positive Romberg sign. She has diminished Achilles reflexes bilaterally. Which of the following tracts are most likely damaged in this patient?? A: Fasciculus gracilis, B: Fasciculus cuneatus, C: Vestibulospinal, D: Rubrospinal, E: Anterior spinothalamic tract,  <response>: This is a clinical vignette describing a 45-year-old woman with a history of well-controlled diabetes mellitus presenting with complaints of clumsiness, tripping, and a recent fall with wrist sprain. She has physical exam findings of diminished proprioception, vibration sense, and Achilles reflexes bilaterally as well as a positive Romberg sign. The key findings are the sensory changes and loss of reflexes in the lower extremities, indicating a peripheral neuropathy likely related to her diabetes. The differential diagnosis includes damage to the posterior dorsal columns of the spinal cord, which carry proprioceptive and vibratory sensation. Specifically, the fasciculus gracilis carries sensation from the lower extremities while the fasciculus cuneatus carries sensation from the upper extremities. The other answer choices describe motor tracts or sensory tracts not involved in proprioceptionvibration.A: Fasciculus gracilis 