单选题One reason for quick population increase in underdeveloped countries is that ______.A those countries encourage people to have large familiesB people can get government support if they have more kidsC improved public health standards have reduced death
题目
单选题
One reason for quick population increase in underdeveloped countries is that ______.
A
those countries encourage people to have large families
B
people can get government support if they have more kids
C
improved public health standards have reduced death rate greatly
D
those countries have enough resources to support a large population