Which Statement About Knowledge of Numerical Magnitudes Is NOT True

Which statement about knowledge of numerical magnitudes is NOT true?

A) Older children can represent the magnitudes of larger numbers more easily than can younger children.
B) Understanding of numerical magnitudes likely helps children rule out implausible answers.
C) Direct instruction in the accuracy of numerical magnitude representations has little effect on arithmetic proficiency.
D) Overall mathematical knowledge is related to children's knowledge of numerical magnitudes.