In a United States survey, which ethnic group was found to be most likely to have food insufficiency?

By the age of ten months, an infant will generally

A) use only the phonemes of the native language of adult speakers around them. B) be in the cooing stage of vocalization. C) have a vocabulary of approximately 100 words. D) speak in two-word "sentences."

According to David McClelland, all children seek to be successful. He referred to this need for success and excellence as:

a. excellence orientation b. achievement motivation c. persistence motivation d. the need for success