Which cocktail contains both vodka and grapefruit juice as mixers?

The cocktail that contains both vodka and grapefruit juice as mixers is the Greyhound. This drink is specifically known for its simple combination of vodka and grapefruit juice, which creates a refreshing and slightly tangy flavor profile. The Greyhound is often served over ice and can be garnished with a slice of grapefruit for added visual appeal and a hint of aroma.

In contrast, other options include ingredients that do not match the specific combination of vodka and grapefruit juice. The Salty Dog, for example, is similar to the Greyhound but is typically made with salted rims and includes the same primary ingredients. The Bay Breeze includes cranberry juice, which changes the flavor profile significantly, and the Cape Cod is primarily vodka and cranberry juice. Understanding the specific ingredients of each cocktail helps in discerning the correct answer.