What is the total number of ounces in a medium plastic cup?

A medium plastic cup typically holds 20 ounces of liquid, which is a standard measurement for many beverage-serving establishments. This size is often preferred as it provides a generous portion without being excessive, making it suitable for a wide range of drinks from coffee to cold beverages.

The 20-ounce measurement is commonly used because it balances the need for customer satisfaction with the operational efficiency of beverage service. Cups that are smaller may not hold enough for certain drinks, while larger sizes can lead to waste or an overwhelming volume for a single serving, depending on the beverage type.

In contexts where beverage options are frequently offered in varying sizes, understanding that a medium cup typically equates to 20 ounces helps in standardizing service and ensuring consistency across different locations or servings. This makes option B the most appropriate and widely accepted answer for the volume of a medium plastic cup.