Which of the Following Is True, According to the Reaction

Which of the following is true, according to the reaction range model?

A) Children with average IQ scores will not have very wide reaction ranges.
B) Children raised in high-quality environments should score near the top of their reaction range.
C) Children with average IQ scores are being raised in average-quality environments.
D) Children raised in high-quality environments will have higher IQ scores than children raised in poor-quality environments.