Which of the Following Statements About Early Intervention Programs Is

Which of the following statements about early intervention programs is true?

A) The earlier intervention begins, the longer it lasts, and the greater its scope and intensity, the better participants' performance is throughout childhood and adolescence.
B) The U.S. Congress recently recognized the successes of early intervention and now fully funds all programs directed at low-income infants and toddlers.
C) Early intervention programs increase intelligence test scores during the school years, but the gains are not sustained beyond middle childhood.
D) Even with early intervention, most children born into economically disadvantaged families will not reach their full potential.