Which statement is true regarding the use of flavoring in bourbon?

The statement that flavoring in bourbon is prohibited is accurate. According to the legal definitions set forth by the U.S. government, bourbon must be produced using specific methods and ingredients that are regulated to maintain its integrity and quality. This includes the stipulation that bourbon cannot have any added flavors or colors; it should be a product that derives its taste and character solely from the grains used during fermentation, the distillation process, and the aging in charred new oak barrels.

This regulation ensures that bourbon maintains its distinct identity, which is a significant aspect of its classification. As such, any added flavoring would violate the standards that define bourbon, making this statement true. The other options imply that flavoring might be acceptable in some manner, which contradicts the legal requirements of bourbon production. Understanding these regulations is crucial for anyone studying bourbon, as it reflects the traditional craftsmanship and authenticity that bourbon is known for.