Anyone wants to join my zm class?

Which of these describes the most important popular jobs in the new england colonies

Dried paste made of boiled beef cow hooves eggs and vegtables what soup

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?