Concept:Dietary fiber is found mainly in plant foods, especially legumes, vegetables, and whole grains.
Explanation:Beans are legumes and are very rich in dietary fiber.
Bread may contain some fiber, but often less than beans unless it is whole grain.
Cabbage has some fiber, but not as much as beans.
Egg is an animal product and contains no dietary fiber.
Therefore, beans contain the highest amount of dietary fiber among the options.
Answer:A. Beans