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
False regarding restrictive cardiomyopathy isa) Filling pressure is increasedb) Left ventricular hypertrophyc) Heart failure is not predominantly right sidedd) In early phase, systolic function is not impaired 
Select and explain. 
A. a, B. c, C. ac, D. bc
D: bc
Answer: D: bc 
Explanation: None