Which flavored vodka is specifically mentioned in the options?

Stoli Vanilla is specifically mentioned in the options as a flavored vodka, which distinguishes it from the other choices. Flavored vodka offers a variety of taste profiles that enhance cocktails and mixed drinks, and Stoli Vanilla, with its smooth vanilla flavor, is a popular choice for many drink recipes. This brand is well-known for trying different flavor infusions, making its flavored offerings readily recognizable in the market and among bartenders.

In contrast, while Smirnoff Orange and Stoli Blueberry also represent flavored vodkas, they do not carry the same level of prominence nor specifically match the question's requirement regarding the options presented. Grey Goose, on the other hand, is primarily recognized for its unflavored vodka, emphasizing its quality and distillation process rather than flavor infusions. Therefore, Stoli Vanilla stands out as the correct answer, featuring a clear example of flavored vodka on the list.