How many pumps of white mocha sauce are in a Tall iced white chocolate mocha?

In a Tall iced white chocolate mocha, the standard preparation calls for three pumps of white mocha sauce. This amount is designed to provide the right balance of sweetness and flavor, complementing the espresso and milk used in the drink. Each size of the drink has a specific number of pumps based on the intended flavor profile and sweetness, and for a Tall, three pumps are optimal to achieve that characteristic taste.

The other options suggest either too few or too many pumps, which would affect the overall flavor experience. Choosing the correct amount ensures consistency in taste across different servings of the drink, which is an essential aspect of Starbucks' service and product standards.