Which of the following are risk factors associated with kidney cancer? (SELECT ALL THAT APPLY)

A. Exposure to asbestos is a known risk factor for kidney cancer due to its carcinogenic effects. B. Smoking increases the risk of kidney cancer by introducing carcinogens that affect the renal system. C. Consumption of green tea is not linked to kidney cancer risk; some studies suggest potential health benefits. D. History of kidney stones is not directly associated with kidney cancer. E. Obesity is a significant risk factor due to hormonal and metabolic changes affecting the kidneys. F. Regular consumption of citrus fruits is not linked to increased risk; it is generally considered healthy. G. Hypertension is associated with increased risk due to its effects on kidney function and vasculature. H. Regular exercise is protective, not a risk factor, for kidney cancer.