In His Research, Kevin Miller Found That Only 48 Percent

In his research, Kevin Miller found that only 48 percent of American children could count to 20, compared to 74 percent of Chinese children. These differences can be understood in terms of

A) cross-cultural differences in number systems, a tool of intellectual adaptation.
B) the extent to which children are expected to learn about numbers.
C) the relative experiences with guided participation.
D) specialized scaffolding abilities of Chinese parents.