FITT stands for frequency, intensity, time, and type. These principles can be used to plan how often you will eat, how much food you will eat, when you will eat, and the quality of the food or calories contained relative to the quantity.
The correct option is A, FIBER.
Fiber is found in foods such as oats, lentils, beans, peas, rice, potatoes, tomatoes, etc. Fiber does not provide any nutrient for the body, but it helps to promote the movement of materials through the digestive system and it can also increase the stool bulk.
Fiber is especially good for people who have constipation problem.
A couple days I rlly don't know the exact sorry I think it is around three from what I heard but I will research more and let u know