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: Medicine
All of the following criteria are required for diagnosis of obesity hypoventilation syndrome except - 
Select and explain. 
A. Hypeension, B. Sleep disorder breathing, C. BMI 30 kg/m2, D. PaCO2. 45 mmHg
A: Hypeension
Answer: A: Hypeension 
Explanation: Answer- A. HypeensionOHS is defined as daytime hypercapnia and hypoxemia in an obese patient with sleep-disordered breathing in the absence of any other cause of hypoventilation