Final answer:
The type of alcohol used in Sweet Bourbon BBQ sauce is bourbon, as its sweet and full-bodied richness defines the sauce's signature flavor. Other spirits would impart different flavors not typical of this sauce.
Step-by-step explanation:
When it comes to the creation of Sweet Bourbon BBQ sauce, the clue is in the name. The type of alcohol that is traditionally used is bourbon. The flavors of bourbon, with its sweet and full-bodied richness, are what contribute to giving the BBQ sauce its distinctive taste and name. In the realm of BBQ, regional variations play a significant role in the flavoring techniques, as seen with the Kansas City BBQ, South Carolinian mustard-based sauces, and the vinegar-and-hot pepper sauces favored by East Carolinians. However, when it comes to Sweet Bourbon BBQ sauce, the final answer would be c) Bourbon. This sauce is typically associated with a sweeter, thicker consistency, which is achieved by the use of ingredients like bourbon, brown sugar, ketchup, vinegar, and spices.
While there are other spirits such as whiskey, rum, and tequila, these are not commonly used for this type of sauce. Each of them would impart a different flavor profile that might not be in line with the traditional taste expected of a Sweet Bourbon BBQ sauce. Therefore, for a distinct, rich, and sweet flavor that's a hallmark of many BBQ sauces, particularly those used in Kentucky and other Southern states, bourbon is the final answer.