Final answer:
Among the options provided, pumpkin pie is the best source of beta-carotene, as it is made from pumpkin, an orange vegetable that is high in this nutrient.
Step-by-step explanation:
The best food source of beta-carotene among the options provided is pumpkin pie. Beta-carotene is an antioxidant that is a precursor to vitamin A, which is important for healthy skin, vision, and immune function.
It is commonly found in foods that are orange in color such as sweet potatoes, carrots, and, in this case, pumpkin.
According to dietary guidelines, consuming a variety of red, orange, and dark green vegetables and fruits can provide a solid intake of beta-carotene.
Pumpkin, the main ingredient in pumpkin pie, falls into the category of orange vegetables and is thus an excellent source of beta-carotene.