Which of the following statements is false?

Question $4$Select one:

A$.$

The decline in mortality has caused the decline in fertility.

B$.$

The fertility rate among women with higher levels of education is lower compared to women with lower levels of education.

C$.$

The increased availibility of contraceptives explain the fertility transition in Europe.

D$.$

As a country develops, the economic benefits of children tend to fall while the cost of raising children rises.