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: Pathology
Characteristic finding in muscular dystrophy is -a) Inflammatory cell infiltrateb) Heterogenicity of fiber sizec) Nuclear proliferation beneath sarcolemmad) Muscle necrosis 
Select and explain. 
A. c, B. d, C. ab, D. bd
D: bd
Answer: D: bd 
Explanation: Histological findings of muscular dystrophy 

Variation (hetrogenicity) in fiber size.
Increased number of internalized nuclei.
Degeneration, necrosis and phagocytosis of muscle fibers.
Regenration of muscle fibers.
Proliferation of endomysial connective tissue.