What Was the Main Conclusion of the "From Neurons to Neighbourhoods

What was the main conclusion of the "From Neurons to Neighbourhoods" study by the National Research Council Institute of Medicine (2000) ?

A) The importance of the Human Genome Project in understanding development
B) The critical time for intervention is early adolescence,so resources must be concentrated there
C) Society's investment in children will have long-term benefits for society
D) Freud was correct in saying that development tends to be set in early childhood,with minimal change throughout the rest of the lifespan