Which of the following would typically not be considered a mixer in cocktails?

In the context of cocktail preparation, mixers are ingredients that are combined with the primary spirit to create a balanced drink. Mixers can include items such as juice, soda, tonic water, and flavored syrups, as these components enhance the flavor, add sweetness, or introduce carbonation to the beverage.

Spirits, on the other hand, are the foundational alcohol component of cocktails. They are the primary ingredients that define the drink's character, such as vodka, gin, rum, or whiskey. Since mixers are intended to complement or dilute the flavor and potency of the spirits, spirits themselves do not fall into the category of mixers. This distinction is essential for understanding cocktail composition, as the balance between the spirit and mixers directly affects the taste and experience of the cocktail.