Why do developed countries have lower growth rates than less-developed countries?
a.) lower death rates

b.) higher birth rates

c.) lower birth rates

d.) higher death rates

C)

Explanation:

I am 100% sure, however,

a)  It is true that developed countries have lower death rate, but that doesn't contribute to the question and supports the opposite thesis.

b) In developed countries there is less birth rate as we see with demographic crisis in Europe and China.

c) Lower birth rates provides less people for the economy and is the most feasible answer

d) Fake news, there are actually lower death rates in developed countries compared to developing ones.