What is the general physical characteristics of primary schools child?
A. Prefers to sit that play
B. start to walk in sit without being supported
C. Has difficulty balancing and often falls down
D. Are extremely active

Which statement on brain development is Correct?

A. Most neutron in the adult brain are produced before birth
B. Most the neutrons in the adult brain are produced at birth
C. Most neutrons in the adult brain are produced after birth
D. Brain development stops at childhood​