Power is the ability to control access to resources, the ability to influence others, and access to decision makers. Discrimination is behavior, intentional or not, which negatively treats a person or a group of people based on their racial origins.
They are important foundations of vitamins and minerals. Breads, cereals, rice, and pasta are good sources of carbohydrates like starch and fiber and are an important source of energy, especially in low fat diets. They also provide vitamins, minerals and fiber. Grains also provide B vitamins, minerals and fiber.
Provided that it would be best to swap white bread and pasta with a wholemeal alternative all together, but if you really have to choose between the two, I would opt for pasta. Reason being that pasta is basically made out of wheat flour and water while white bread has more ingredients among which yeast that can have a bloating effect.