Final answer:
Oatmeal is the best source of complex carbohydrates among the provided options. It offers slow energy release and contains dietary fiber, unlike the simple sugars found in fruits and honey.
Step-by-step explanation:
The best source of complex carbohydrates from the options provided is oatmeal. Unlike simple carbohydrates found in items such as strawberries and honey, complex carbohydrates provide a slower, more sustained release of energy, along with dietary fiber which helps with digestion. Foods like oatmeal are rich in these types of carbohydrates. A single serving of oatmeal can provide a significant amount of the daily recommended intake of complex carbohydrates, making it an excellent choice for a nutrient-dense meal. Fresh fruits like oranges and strawberries primarily contain simple sugars, although they do offer vitamins and other nutrients. Honey, while a natural sweetener, consists mostly of simple sugars.