Which of the Following Is an Accurate Statement About the Effect

Which of the following is an accurate statement about the effect of schooling on children's cognitive development in middle childhood?

A) The rate of progression through the concrete operational stage does not predict how well children will reason in adolescence and childhood.
B) School experiences are linked to the emergence of advanced cognitive skills over and above normal maturation.
C) The rate of cognitive development doesn't matter, so long as everyone gets to the same place developmentally.
D) Unschooled children are also no less proficient at generalizing a learned concept or principle to some new setting.