According to the Research on Children's Working Memory

According to the research on children's working memory,

A) children's memory span remains fairly constant between the ages of about 2 and 10.
B) children do not seem to have a functioning visuospatial sketchpad until they are about 10 years of age.
C) scores on tests of phonological working memory are correlated with reading skills.
D) scores on tests of visuospatial working memory do not seem to be correlated with any academic skills.