What ingredients are typically used in a Cuba Libre?

The Cuba Libre is a classic cocktail that is known for its refreshing and simple combination of flavors. It primarily consists of rum, which is a key ingredient that defines the drink. The addition of Coke provides the sweetness and carbonation that balances well with the rum. A lime wedge is essential, as its juice adds acidity and brightness, enhancing the overall flavor profile of the cocktail. The use of these specific ingredients—rum, Coke, and lime—creates the distinctive taste that characterizes a Cuba Libre.

In contrast, the other listed combinations do not align with what defines a Cuba Libre. Vodka, gin, or whiskey mixed with Coke or other mixers result in entirely different drinks that lack the essential rum component. Therefore, the correct answer accurately reflects the traditional ingredients used in a Cuba Libre, making it the only choice that fits this well-known cocktail recipe.