Which of the following statements about the effects of migration to countries in different stages of demographic transition is true?
a.
migration out of a stage 1 or 2 country is higher than migration to it.
b.
migration out of a stage 3 or 4 country is higher than migration to it.
c.
migration into a stage 1 or 2 country is higher than migration out of it.
d.
migration rates are exactly the same for all nations regardless of their stage of transition.