This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: General pathology, Subject name: Pathology
[{'content': 'Increased blood volume in tissue is known as - \nSelect and explain. \nA. Hypermia, B. Edema, C. Congestion, D. Purpura', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Hyperemia is an active process due to aeriolar dilatation and increased blood inflow, resulting in high blood volume at tissues. Basic Pathology, Robbins. Page no.: 75', 'role': 'assistant'}]