Which of the Following Describes an Association Between Protein Intake

Which of the following describes an association between protein intake and kidney function?

A) Low-protein diets increase the risk for kidney stone formation
B) Restricting protein intake may slow the progression of kidney disease
C) High protein intakes over the long term represent a risk factor for kidney disease
D) Liberal protein intakes result in high urea production,which increases the long-term efficiency of the kidneys