What is the recommended maximum drink size for a single-serving cocktail?

The recommended maximum drink size for a single-serving cocktail is 2 ounces of distilled spirit. This guideline aligns with standard practices in the bartending industry, where a cocktail typically contains one to two standard drinks worth of alcohol.

Using 2 ounces as a serving size helps ensure that cocktails are not overly strong, which can enhance the drinker's experience while promoting responsible consumption. It also aids in maintaining consistency in cocktail taste and strength, allowing bartenders to create balanced drinks that are pleasurable but not excessive in alcohol content. This helps ensure that patrons can enjoy their beverages responsibly without risking overindulgence.

The other options exceed the recommended amount for a single cocktail, leading to stronger drinks that could contribute to irresponsible drinking practices. Keeping cocktails within this guideline is crucial for both health and safety considerations in bars and restaurants.