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
Lack of Leucocyte adhesion molecules (LAM) is associated with - 
Select and explain. 
A. Delayed closure of umblical cord, B. Normal chemotaxis, C. Compliment opsinization, D. Neutropenia
A: Delayed closure of umblical cord
Answer: A: Delayed closure of umblical cord 
Explanation: None