What flavor is associated with the pump labeled "O"?

The pump labeled "O" is associated with the flavor orange. This correspondence is likely derived from a common practice in beverage preparation where pumps are labeled with the first letter of their respective flavor. In the case of orange, the letter "O" clearly identifies this specific fruit flavor.

Other options, such as peach, raspberry, or pumpkin spice, do not begin with the letter "O," which establishes the labeling convention in this context. Recognizing the naming scheme is essential for understanding how to efficiently prepare beverages, particularly in a coffee shop or café setting.