Humans, as a species, form biparental families and

A study of Brazilian children who were experienced at selling products at street stands found that the children were good at solving word problems that had a "selling" context

However, the children performed much worse on word problems that required the same computations but A) did not have the sales context. B) required a calculator to be solved. C) were not presented in their native language. D) could only be solved cooperatively.

_____cultures place strong prohibitions on adolescent sexual activity before marriage:

A. Restrictive B. Oppressive C. Semirestrictive D. Permissive