The Relatively High Incidence of Expanded Family Households Among Poorer

The relatively high incidence of expanded family households among poorer North Americans is

A) the result of a patrilocal residence pattern.
B) an adaptation to poverty.
C) maladaptive, since smaller families would have fewer expenses.
D) the result of bifurcate merging, a practice brought to the United States by Scotch-Irish immigrants during the early part of the 20^th century.
E) the reason welfare in the United States is ineffective.