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: Ophthalmology
A 15-year-oldboy presented with headache and blurring of vision. On examination there was diptopia on looking towards left in the right eye.What is your diagnosis? 
Select and explain. 
A. Tb meningitis, B. Internuclear ophthalmoplegia, C. Cranial neuritis, D. Demyelination
B: Internuclear ophthalmoplegia
Answer: B: Internuclear ophthalmoplegia 
Explanation: Ans: B. Internuclear ophthalmoplegiaDemyelinationRef Bilateral Internuclear ophthalmoplegio in Multiple sclerosis,iejm journal,20l6Typically, symptoms & examination findings i.e. diplopia on looking towards left in the right eye is characteristic of internuclear ophthalmoplegia.