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
Petechiae is? 
Select and explain. 
A. Pin point hemorrhage of the skin, B. Hemorrhagic patch of the skin with size < 0.5 mm in diameter, C. Hemorrhagic patch of the skin with size 0.5 to 1 mm in diameter, D. Irregular hemorrhagic patch in the skin
A: Pin point hemorrhage of the skin
Answer: A: Pin point hemorrhage of the skin 
Explanation: None