For all iced beverages, what is typically added to fill the drink to the top?

For all iced beverages, ice is the essential component added to fill the drink to the top. It not only provides the necessary chill to the beverage but also occupies space, allowing for a more satisfying volume of drink when served. Ice serves as a fundamental ingredient to achieve the desired temperature and dilution level for iced beverages such as iced coffee, iced tea, and other specialty drinks.

In contrast, cream, whipped cream, and foam are toppings or add-ons that enhance the flavor and presentation but do not serve the primary function of filling the drink. They are typically used as enhancements based on customer preference rather than as a necessary part of the beverage structure. Therefore, ice remains the correct answer, as it is integral to the preparation of iced drinks.