What does a red eye consist of?

A red eye is a coffee drink that specifically combines espresso with brewed coffee, thus providing a strong and intense flavor. The correct choice correctly identifies that a red eye consists of espresso added to another coffee component, which in this context is a French roast coffee.

French roast coffee generally has a dark and bold flavor that enhances the overall intensity of the espresso, making the drink richer and more robust. The combination is designed for those who seek an extra caffeine kick along with the smoothness that espresso provides when layered on top of the brewed coffee.

The other options do not accurately reflect the composition of a red eye; for instance, espresso with hot water describes an Americano, while regular coffee with steamed milk indicates a latte. Matcha green tea powder with steamed milk is unrelated, as it pertains to a completely different beverage category. Thus, the specific pairing of espresso with French roast coffee captures the essence of what a red eye truly is.