Which of the following describes the main difference between energy that comes from simple foods (such as sugar or candy) and those that are complex (such as oatmeal)?

a. it takes time and energy for your body to break down more complex foods, whereas simple foods are broken down more quickly.
b. the body prefers simple foods because they provide more energy than complex foods.
c. simple foods are less harsh on the digestive system; therefore, simple foods are easier to digest.
d. complex foods need more cooking time; therefore, they're less nutritious than simple foods.