Upon the mexican cession, the united states found itself

d. stage 4

explanation:

the existence of some kind of demographic transition is widely accepted in the social sciences because of the well-established historical correlation linking dropping fertility to social and economic development.[1] scholars debate whether industrialization and higher incomes lead to lower population, or whether lower populations lead to industrialization and higher incomes. scholars also debate to what extent various proposed and sometimes inter-related factors such as higher per capita income,lower mortality, old-age security, and rise of demand for human capital are involved.[2]

community or area create social relationships that typically differ greatly from the affiliations ultimate effects of travel experiences on the population in areas of origin, as well as in places of wage of only a dollar or two. motorcoach operators, museums, and restaurants fall into the broad category of public

explanation: