During Brain Development, in Addition to Axons Growing Out to Make

Multiple Choice

 During brain development, in addition to axons growing out to make new synaptic contacts, synaptic pruning can occur. Synaptic pruning

A) is a normal part of brain development.
B) is associated with mental retardation and results in too few connections.
C) results from insufficient amounts of neurotrophins.
D) results from excess amounts of neurotrophins.