Which food group is rich in Vitamin B9 and potassium?

The correct answer is fruits, as certain fruits are particularly rich in both Vitamin B9 (also known as folate) and potassium. Folate plays an essential role in DNA synthesis and repair, making it particularly important during periods of rapid growth, such as during pregnancy. Fruits such as bananas and avocados are not only high in potassium, which is crucial for heart, muscle, and nerve function, but they also provide a significant amount of folate.

While vegetables also contain folate and various levels of potassium, the question specifically asks which food group is rich in both nutrients. Grains can provide folate, especially fortified cereals, but they usually do not offer as much potassium as fruits. Dairy products do not typically contain significant amounts of either Vitamin B9 or potassium compared to fruits, making them less relevant in this context.