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': 'Simple squamous epithelium is seen in \nSelect and explain. \nA. Blood vessels, B. Thyroid follicle, C. Esophagus, D. Hard palate', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Squamous epithelium lines theinside of the hea ,where it is called endothelium INDERBIR SINGH&;S TEXT BOOK OF HUMAN HISTOLOGY-REFERENCE page no:41', 'role': 'assistant'}]