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
Cor pulmonale is: 
Select and explain. 
A. Standstill of heart, B. Decreased cardiac output, C. Decreased venous return, D. Decreased ventricular constriction
D: Decreased ventricular constriction
Answer: D: Decreased ventricular constriction 
Explanation: None