Which American whiskey style is characterized by the use of the Lincoln County Process?

The choice of Tennessee whiskey is correct as it is specifically characterized by the use of the Lincoln County Process. This unique method involves filtering the spirit through charcoal before it is aged in barrels. The process is named after Lincoln County in Tennessee, where the technique was developed in the 19th century. It is intended to enhance the flavor and impart a smoother profile to the whiskey, distinguishing it from other types of American whiskey.

In contrast, rye whiskey and bourbon do not utilize the Lincoln County Process. Rye whiskey is primarily defined by its grain mash bill, which must be at least 51% rye, while bourbon must be made from at least 51% corn and does not undergo the filtration process that characterizes Tennessee whiskey. Scotch, being a type of whisky from Scotland, does not follow these American whiskey standards and has its own regulations and production methods that do not include the Lincoln County Process. Thus, Tennessee whiskey is the only style among the choices listed that uses this particular method.