How does the number of syrup pumps change from a Tall to a Grande coffee?

The correct answer highlights the standard practice at Starbucks regarding syrup pump measurements as the size of the drink increases. When moving from a Tall to a Grande, the number of syrup pumps indeed increases by one. For instance, a Tall typically receives three pumps of syrup, while a Grande gets four. This incremental increase ensures that the flavor intensity is balanced with the larger volume of the drink.

The rationale behind this practice is to maintain consistency in taste and sweetness across different drink sizes, ensuring that customers receive an experience that is proportional to their chosen sizes. The other options do not accurately represent this standard; the number of pumps does not stay the same across sizes nor does it decrease.