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
Haemorrhagic shock due to acute blood loss includes 1. Increasing pallor 2. Restlessness 3. Air hunger 4. Water-hammer pulse Haemorrhagic shock due to acute blood loss includes 
Select and explain. 
A. 1 & 4, B. 1 & 2, C. 1, 2 & 3, D. 2,3 & 4
C: 1, 2 & 3
Answer: C: 1, 2 & 3 
Explanation: C i.e. 1, 2 & 3