What are the basic components of a Black Rock Mocha?

The composition of a Black Rock Mocha is centered around the combination of espresso, steamed milk, chocolate sauce, and whipped cream, making option A the correct one.

The espresso forms the base of the mocha, providing a rich and robust coffee flavor that is essential for any mocha product. The addition of steamed milk enhances the drink's creaminess, balancing the intensity of the espresso. Chocolate sauce is a key component, delivering the sweet chocolate flavor that defines a mocha. Finally, whipped cream is added on top, not only for its indulgent texture but also to enhance the overall presentation and flavor profile of the drink.

Therefore, the selection of espresso, steamed milk, chocolate sauce, and whipped cream encapsulates the essence of what a Black Rock Mocha is meant to be, focusing on creating a deliciously balanced coffee beverage.