Cross-Cultural Research Suggests That

Cross-cultural research suggests that

A) compared to non-Western societies, comprehension of conservation in Western societies is greatly delayed.
B) among the Hausa of Nigeria, the most basic conservation tasks, such as number and length, are understood as early as age 4.
C) taking part in everyday activities helps children master conservation and other Piagetian problems.
D) Hausa and American children attain conservation at about the same age.