Researchers Who Make Cross-Cultural Comparisons of Youngsters' Mathematical Abilities Have

Researchers who make cross-cultural comparisons of youngsters' mathematical abilities have found that:

A) Cultural differences exist and seem to be the result of genetic differences among various groups.
B) Cultural differences exist and seem to be related to children's involvement in family businesses.
C) Cultural differences exist and may be partially the result of how numbers are represented in language.
D) A basic understanding of number (including, at a minimum, numbers 1 through 10) is universal across all cultures.