The stages of development, as proposed by piaget, appear to be impossible to measure across cultures common only in collectivist cultures common only among middle-class children common only in children from western cultures universal across cultures

I believe the answer is: universal across cultures

This mean that the stages of development that proposed by piaget could also be spotted in other society that had different custom/cultures than united states. From this, we can infer that the development is influenced by biological factors rather than environmental.

a. the moon was locked into orbit by the earths gravity as it was passing by and capture hypothesis i think

no the answer is c only objects touching the earth's surface can be acted upon by an outside force