How have courts interpreted the Eighth Amendment concerning the diets provided to incarcerated individuals? A.) Prisons must provide an adequate and varied diet to meet basic needs, but specific diets are not guaranteed unless required for religious observance. B.) Prisons are only required to provide meals sufficient to prevent starvation, without consideration for dietary adequacy or variety. C.) Incarcerated individuals have a constitutional right to demand specific diets of their choosing, regardless of religious or nutritional necessity. D.) Courts have ruled that any meal, including the infamous "Nutraloaf," violates the Eighth Amendment if it is served repeatedly to incarcerated individuals