In what way is the georgia constitution similar to the united states constitution? a) they each have been amended 27 times. b) they each contain just seven "articles." c) they each have remained unchanged since their approval. d) they set up a separation of powers within the government.

Chen's research team randomly assigned some newborns and their mothers either to a breastfeeding promotion group (where breastfeeding was encouraged, but not required) or to a normal pediatric care group (where breastfeeding was neither encouraged nor discouraged). which research method did they use?