I think what ur trying to get at is tht the article to this would be (Hannibal 16-17)
Using the plate method for portioning food will enable the patient to receive all of the required daily nutrients and the amount of each food item. This method enables for a simple measure of the amount of food that should be served , so yh have a great day !
It's b, as that is in the subjunctive tense
The second option because it is stated a fact rather than a bias opinion