Currently, the united nations population fund believes that investments in family planning worldwide will result in a. savings in health-care costs about equal to the investment. b. reduced marriage rates in underdeveloped countries. c. savings in health-care costs of more than twice the investment. d. a 50 percent reduction the crude birth rate

Pretty sure the answer is D:A 50 percent reduction the crude birth rate

A: That is a double negative and doesn't really help anyone.
B: Marriage has nothing to do with that, neither would a reduce in it necessarily be a good thing.
C: Again this isn't something that really matters, they wouldn't fund something just to loose twice what they gave away in the first place.

That is my reasoning. Good luck! Have an awesome day.

Yes, the correct answer is b.