Scientific research about how disruptions of the carbon and nitrogen cycles affect people will be least valuable if the results:are inconclusive but...

Scientific research about how disruptions of the carbon and nitrogen cycles affect people will be least valuable if the results:

 A.are inconclusive but might possibly be true. 

B.help us prevent a continued rise in Earth's sea level. 

C.are confirmed by peer review but are rejected by the public.

 D.help us slow the growth of Earth's human population.