This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Cellular Pathology, Subject name: Pathology
Sign of chronic inflammation - 
Select and explain. 
A. Angiogenesis, B. Purulent exudate, C. Induration, D. Edema
A: Angiogenesis
Answer: A: Angiogenesis 
Explanation: Ans. is 'a' i.e. Angiogenesis Chronic inflammation is characterized byo Infiltration with mononuclear cells, which include - macrophages, lymphocytes, and plasma cellso Tissue destruction, induced - the persistent offending agent or by the inflammatory cellso Attempts at healing - connective tissue replacement of damaged tissue, accomplished by angiogenesis (proliferation of small blood vessels) and, in particular, fibrosis.