This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: General anatomy, Subject name: Anatomy
[{'content': 'In which of the following, parallel and uniform spaced collagen present? \nSelect and explain. \nA. Diapharagm, B. Cornea, C. Basement membrane, D. Tympanic membrane', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Corneal stroma: a thick, transparent middle layer, consisting of regularly arranged collagen fibers along with sparsely distributed interconnected keratocytes Inderbir Singh&;s human Histology Seventh edition Pg 391', 'role': 'assistant'}]