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
All of the following reflexes are present at birth except: 
Select and explain. 
A. Startle reflex, B. Moro's reflex, C. Landau reflex, D. Walking reflex
C: Landau reflex
Answer: C: Landau reflex 
Explanation: Only landau and parachute reflexes are not present since birth.