What is commonly used to sweeten coffee drinks?

The use of sugar, syrups, or flavored creamers to sweeten coffee drinks is a widely accepted practice due to their ability to enhance flavor profiles and customize sweetness levels to individual preferences. Sugar is a traditional sweetener that dissolves easily in hot beverages, providing a straightforward way to enhance the taste of coffee. Syrups, such as vanilla, hazelnut, or caramel, add not only sweetness but also additional flavors, making them popular choices in coffee shops. Moreover, flavored creamers offer both sweetness and creaminess, allowing for a richer and more indulgent coffee experience.

In contrast, while options like cinnamon and nutmeg can add flavor and some sweetness, they are not primarily used for sweetening. Honey and milk do add sweetness to some extent but are often considered more for their creaminess or natural flavor than as primary sweeteners. Stevia and cocoa powder may sweeten coffee but are also less commonly used compared to the more straightforward and widely accepted options provided in the correct answer. Thus, the correct choice encapsulates the most common and versatile methods of sweetening coffee drinks.