A middle aged female presents with slowly progressive weakness of lower limbs, spasticity and recent onset hesitancy of Micturition.On neurological examination there is evidence of dorsal myelopathy.MRI scan of spine reveals middorsal intradural contrast enhancing mass lesion.Diagnosis is -

• A. Intradural Lipoma
• B. Dermoid Cyst
• C. Meningioma
• D. Epidermoid Cyst