A client is being discharged with a prescription for warfarin. Which instruction should the nurse provide this client regarding diet?

A. Increasing the intake of dark green leafy vegetables while taking warfarin can affect INR levels due to their high vitamin K content, potentially increasing the risk of bleeding. B. Eating two servings of raw dark green leafy vegetables daily and continuing for 30 days after warfarin therapy is completed is not recommended as it may affect INR levels. C. Eating approximately the same amount of leafy green vegetables daily helps maintain consistent vitamin K intake, which is important for keeping INR levels stable while on warfarin therapy. D. Avoiding all foods containing vitamin K is not necessary and may lead to nutritional deficiencies; instead, it's important to consume a consistent amount of vitamin K-containing foods.