Please answer all them I have to turn in tmmr. :(

Doing the text now can someone me

Why is it economically necessary for the east germans to build berlin wall

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?