This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Respiratory System, Subject name: Physiology
Hypoxia due to slowing of circulation is- 
Select and explain. 
A. Anemic, B. Histotoxic, C. Stagnant, D. None
C: Stagnant
Answer: C: Stagnant 
Explanation: Ans. (c) Stagnant(Ref: Ganong, 25th ed/p.647)Stagnant hypoxia is also called as ischemic hypoxia or circulatory hypoxia or Hypoperfusion hypoxiaCommonly seen in congestive cardiac failure and circulatory shock