What is the function of garnish in salad?

The function of garnish in salad is primarily to complement the taste while enhancing the appearance. Garnishes are intended to elevate the visual appeal of a dish, making it more enticing to eat, and they can also add subtle flavor additions or contrast to the main ingredients. A well-chosen garnish can enhance the overall dining experience by adding color, texture, and even a hint of flavor that harmonizes with the salad's main components.

Other options, such as adding protein or serving as a filling, do not accurately reflect the primary role of garnishes in salads. While some components of a salad can include protein or be filling, the garnish itself is typically a decorative element rather than a substantial ingredient. Similarly, garnishes do not usually serve to decrease calorie count; their main purpose remains centered on aesthetics and enhancement of flavor. Thus, option B effectively captures the essential role of garnishes in salads.