To help Chase cut back on salt, the best choice among the options provided would be a baked potato made in his home oven. When prepared at home, he can control the amount of salt added, or choose not to add any salt at all.
In contrast, fast food French fries, frozen hash browns, and restaurant potato chips are often high in sodium due to added salt or preservatives. Therefore, the baked potato is the healthiest option in terms of salt content.