This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Misc., Subject name: Pathology
[{'content': "Takayasu's arteritis with pulmonary arteries involvement is designated as \nSelect and explain. \nA. Type I, B. Type II, C. Type III, D. Type IV", 'role': 'user'}, {'content': 'Answer: D \nExplanation: (D) Type IV# "Takayasu\'s arteritis" described as three types on the basis of the location and extent of the arteritis affecting the aorta. In 1977. Lupi- Herrera et al. described an additional variant with pulmonary artery involvement, which they designated type IV.', 'role': 'assistant'}]