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: Pathology
Pinpoint hemorrhages of < 1cm diameter are known as 
Select and explain. 
A. Petechiae, B. Ecchymoses, C. Purpura, D. Pustules
A: Petechiae
Answer: A: Petechiae 
Explanation: None