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: Physiology
Neutrophil hypomotility syndrome is due to 
Select and explain. 
A. Defective actin polymerization, B. Deficiency of leukocyte integrins, C. Defect in free radical production, D. Absence of actin
A: Defective actin polymerization
Answer: A: Defective actin polymerization 
Explanation: None