William is writing a research question to drive his study about the difference between the USDA's recommendations regarding the consumption of dairy products and current research on the subject.
Which question is most effective for guiding William's research?
A.
Why do the USDA’s current recommendations regarding the consumption of dairy products contradict current research findings?
B.
Who does the USDA consult in the research community when considering whether to change their guidelines concerning dairy product consumption?
C.
How often does the USDA apply current research findings to update their guidelines concerning the consumption of dairy products?
D.
How does the USDA work with researchers to update their recommendations to the public regarding dairy product consumption?
