Question

plz help
In a persuasive speech titled Africa Needs Clean Water, each of the following is a valuable piece of information to include except:

A. statistics stating how many Africans don't have a good water source.
B. statistics demonstrating how much it costs to dig one well to support a town in Africa.
C. statistics stating how many Africans die of diseases related to using unclean water.
D. statistics describing how much clean water Americans waste every year.