Newborns born to migrants are generally healthier in every way,including birthweight,than newborns of U.S.-born women.This phenomenon is called the:

A) sociocultural paradox.
B) immigrant paradox.
C) ethnic anomaly.
D) cultural enigma.

The phenomenon described in the question is known as the immigrant paradox. This refers to the pattern observed in many studies, that foreign-born individuals and their offspring tend to have better health outcomes than their U.S.-born counterparts, despite often facing similar or even greater socioeconomic disadvantages. The reasons for this paradox are not fully understood, but may be linked to factors such as migration selection (i.e. individuals who are healthier or have greater resilience may be more likely to migrate), cultural protective factors (i.e. specific health practices or values that are more prevalent in some immigrant communities), or a so-called "healthy migrant effect" (i.e. individuals who are deemed unfit to migrate due to health reasons are excluded from the migrant population).