This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Neuro Ophthalmology, Subject name: Ophthalmology
[{'content': 'Ptosis indicates paralysis of which cranial nerve? \nSelect and explain. \nA. 3rd, B. 5th, C. 4th, D. 6th', 'role': 'user'}, {'content': "Answer: A \nExplanation: I-Congenital ptosis-from bih to 1 yr II.Acquired ptosis includes: 1. Neurogenic ptosis- 3rd nerve palsy ;A/w Horner's syndrome 2. Myogenic ptosis- seen in mysthenia gravis ,myotonic dystrophy 3.Aponeurotic ptosis/involution/senile ptosis-present in old people;aponeurosis of LPS is damaged 4. Mechanical ptosis-due to inflamation / tumours PTOSIS OF RIGHT EYE NOTE- Among all cases of ptosis, congenital ptosis is the most common type which seems to be more prevalent in males. Simple congenital ptosis is the most prevalent form of congenital ptosis", 'role': 'assistant'}]