According to Vaillant, men become "keepers of meaning," or guardians of their culture, in their

By age 10, most children

A) reach a broad understanding and awareness of the ways that knowledge is acquired. B) are unable to consistently make mental inferences. C) distinguish mental activities on the basis of certainty of knowledge. D) grasp the interrelatedness of cognitive processes.

In terms of IQ scores, adopted children's IQ scores are more like their adopted parents' scores than their biological parents' scores

Indicate whether the statement is true or false