Which of the Following Statements Most Accurately Reflects the Text's

Which of the following statements most accurately reflects the text's position regarding the relative contribution of genes and environment in determining intelligence?

A) Except in cases of a neglectful early environment, each individual's basic intelligence is largely the product of heredity.
B) Except in those with genetic disorders such as Down syndrome, intelligence results primarily from environmental experiences.
C) Both genes and life experiences significantly influence performance on intelligence tests.
D) Because intelligence tests have such low predictive validity, the question cannot be addressed until psychologists agree on a more valid test of intelligence.