Answer:
Hey!
Your answer is that it DECREASES (A)
Step-by-step explanation:
Many studies can confirm that the birth rates are higher in developing countries than in countries that are developed (industrialized). When a developing country reaches industrialized status, it is very common to notice the numbers of births per 1000 people DECREASES. This could be because industrialization brought better healthcare systems so having a family would be easier without the likelihood of disease killing the children OR people are having children at a later age because they are working for a longer period of their lives in factories etc...
Two factors that explain the high birth rates in developing countries are the lack of access to contraceptives (so as a result large families)/medical assistance (disease is common=multiple children for increased chance of survival) OR lack of education (so uneducated people stay at home to raise families instead of going to school/work)
I HOPE THIS HELPED YOU! :D