Bridget and Theo Are Parents of an Infant

Bridget and Theo are parents of an infant. A friend encourages them to buy a learning system for their infant, citing the "use it or lose it" concept of maintaining existing neural connections. Is this the best advice?

A) Yes, infants have billions of neurons and now is the time to maintain them.
B) Yes, infants crave stimulation, and this is the critical period for brain growth.
C) No, pruning away excess neurons will improve the child's neural communication.
D) No, synaptogenesis must be allowed to occur naturally without a structured environment.
E) Yes, early brain growth leads to better synaptic connections later in childhood.