Correct Option: B

Iodine exists in soil, but the content may vary because soil erosion can leach away this and other minerals. Beans and seeds highest in iodine content include lima beans, soybeans, cooked navy beans and sesame seeds. Vegetables highest in iodine include spinach, Swiss chard, turnip greens, summer squash and white potatoes with the peel. The herb highest in iodine is garlic.