This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Surgery
Bleeding caused in a extraction socket due to wound sepsis after few days is called as 
Select and explain. 
A. Primary hemorrhage, B. Reactionary hemorrhage, C. Secondary hemorrhage, D. Systemic hemorrhage
C: Secondary hemorrhage
Answer: C: Secondary hemorrhage 
Explanation: None