What type of infant temperament is generally associated with better adjustment in adulthood?

Results of massive, continued intervention programs such as the Carolina Abecedarian Project show that

a. long-lasting improvements in the academic and intelligence test scores of disadvantaged children can be achieved. b. even with continued intervention, the improvements in disadvantaged children's intelligence are not significant from a practical standpoint. c. improvements in the scores of disadvantaged children are only temporary. d. continued intervention is relatively inexpensive.

After learning strengthens one set of synapses, other synapses ____

a. weaken b. die c. get stronger d. become aroused