3. A county has recently evolved from underdeveloped to developed and the birth and death rate have stabilized, This is known as O A. zero population growth.
© B. birth stabilization.
© C. demographic transition.
D. death stabilization.

This is known as demographic transition. A county has recently evolved from underdeveloped to developed and the birth and death rate have stabilized. This is known as demographic transition

Explanation:

it's     c       this is a cell (b) with a nucleus (c) containing dna (a). the dna is organized into chromosomes (d). a section of the chromosome that codes for a trait is called a gene (e).