The demographic transition Theory helps explain a. why people move
b. how to gather the demographic statistics of a society
c. how migration is related to pull factors
d. how population change is related to the technological development of a society ​

The demographic transition theory helps explain:

d. how population change is related to the technological development of a society.

Explanation:

Let's expand the concept letter D offers of demographic transition theory. Technological development is merely one of the factors that affect populations. The others are education and economic development.

According to the demographic transition theory, we find high rates of birth as well as death in societies with low economic and technological development and in which people are less educated.

As societies develop and people have more access to education, we notice firstly a decrease in death rates. Then, due to fertility and birth control, birth rates will also go down. Finally, both rates will be low in advanced societies.

bc

explanation: