Despite his young age, Reuben was recently diagnosed with hypertension. He knows that reducing dietary sodium and increasing dietary potassium can both help to lower his blood pressure. Of the following foods, which one contains the most potassium per serving?
a. Banana (1 medium)
b. Bread, 100% Whole Wheate (1 slice)
c. Potatoes, Baked (1 item - medium 2 1/4 in to 3 1/4 in diameter)
d. Peanut butter, smooth (1 tablespoon)