All of these are examples of complex carbohydrates.
- Legumes (such as lentils and beans) are rich in fiber and provide a good source of protein.
- Potatoes are starchy vegetables that contain significant amounts of carbohydrates.
- Whole grains (like brown rice, quinoa, and whole wheat) include the bran, germ, and endosperm, making them a good source of fiber and nutrients.
So the correct answer is All of these.