This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Conjunctiva, Subject name: Ophthalmology
[{'content': 'Angular conjunctivitis is caused by - \nSelect and explain. \nA. H. influenza, B. Adenovirus type 32, C. Moraxella axenfield bacillus, D. Brahnmella', 'role': 'user'}, {'content': "Answer: C \nExplanation: Moraxella axenfeld (moraxella lacunata) is the most common causative organism for angular conjunctivitis. Ref: Parson's 21st/e p.168", 'role': 'assistant'}]