Many developing countries have experienced decades of rapid population growth and thus seem to be trapped in .
a) the population divide
b) fertility conversion
c) their population profile
d) the demographic transition

D. The Demographic transition

Explanation: Demographic transition explains the association between population growth and economic development. It explains the high infant mortality and high birth rate associated with non-industrial, low technology and many developing countries and the low infant mortality, low birth rate commonly found in industrial, high technology and high level of education found in developed countries.

It is an historical overview which shows high birth rate in low industrial and developing countries and low birth rate in industrial and developed countries.

answer; /// the answer to the first question is (b) it began when people first deliberately seeds; /// and (d); // it gave people a steady food supple for the first time;