This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Strabismus - Definition and Evaluation, Subject name: Ophthalmology
[{'content': 'Exotropia occurs due to - \nSelect and explain. \nA. Third nerve palsy, B. Optic neuritis, C. Abducens injury, D. Papilloedema', 'role': 'user'}, {'content': "Answer: A \nExplanation: Ans. is 'a' i.e. Third Nerve Palsy Causes and associations of exotropia (Divegent squint)o Third nerve palsyo Congenitalo Previous strabismus surgeryo Thyroid ophthalmopathyo Iatrogenic trauma following retinal detachment surgery", 'role': 'assistant'}]