<prompt> All are seen in metachromatic leukodystrophy EXCEPT:Mental retardationOptic atrophyDecerebrate postureExaggerated tendon reflexes  <response>: Metachromatic leukodystrophy MLD: Caused by defective enzyme Arylsulfatase A There is hypotonia and absent reflexes Mental retardation Optic atrophy Decerebrate posture 