This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Medicine
Earliest presentation of Friedrich's ataxia is? 
Select and explain. 
A. Ataxia, B. Seizures, C. Optic atrophy, D. Stuttering
A: Ataxia
Answer: A: Ataxia 
Explanation: Answer is A (Ataxia): In most patients ataxia of gait and stance is the first manifestation of the disease.- Clinical Neurology by Goetz 2"d/742 Friedreich's ataxia presents with progressive staggering gait, frequent falling and titubation- Harrison Note: The first pathological changes in Friendreich's Ataxia are thought to occur is dorsal root ganglia with loss of large sensory neurons.