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: Dental
Which of the following reflex persists as voluntary standing: 
Select and explain. 
A. Walking or stepping reflex., B. Limb placement reflex., C. Parachute reflex., D. Landau reflex.
A: Walking or stepping reflex.
Answer: A: Walking or stepping reflex. 
Explanation: None