Which of the following is a common source of vitamin C?

Citrus fruits are widely recognized as one of the richest sources of vitamin C, which is vital for various bodily functions, including the maintenance of healthy skin, blood vessels, and cartilage. Vitamin C also plays a crucial role in the immune system and acts as an antioxidant, helping to protect cells from damage by free radicals.

Citrus fruits such as oranges, lemons, limes, and grapefruits are particularly high in ascorbic acid, the chemical name for vitamin C. Consuming these fruits regularly can help individuals meet their daily recommended intake of this important vitamin.

In contrast, while apples, bananas, and rice provide essential nutrients and can be part of a balanced diet, they do not have as significant a vitamin C content as citrus fruits. Apples and bananas are more known for their fiber and potassium content, respectively, while rice serves mainly as a carbohydrate source with minimal vitamin C levels. Therefore, the choice of citrus fruits as a common source of vitamin C is well-founded based on their nutritional profile.