Parental income and education levels are related to children's receptive and expressive vocabulary at age 2 to 4 years. The differences among families may occur because parents with higher income and/or education levels __________.
A. more frequently play language games and talk about picture books with their children
B. are more likely to play language games but not to talk about picture books
C. engage in fewer conversational turns with their children, but tend to lecture them
D. use up to 1 million more words around their children by age 2 than parents with lower income and education levels
Answer: A
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A. practical experience B. intellectual superiority C. genetic superiority D. physical fitness
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Fill in the blank(s) with the appropriate word(s).
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