The demographic conditions that support the traditional family are most likely to occur

The demographic conditions that support the traditional family are most likely to occur
 
  a. before the demographic transition starts.
  b. in the early stages of the demographic transition.
  c. in the middle of the demographic transition.
  d. late in the demographic transition.

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The diversity of household types in the United States is most noticeable in terms of the percent of households that are
 
  a. married couples with children.
  b. married couples without children.
  c. cohabiting couples.
  d. other families without children.