Which operation would you use to find elements that are not shared between two sets?

To find elements that are not shared between two sets, the difference operation is the appropriate choice. The difference between two sets, often denoted as A - B, includes all the elements that are found in set A but not in set B. This effectively allows you to identify what is unique to one set, thereby highlighting what elements are not shared.

For example, if you have set A = {1, 2, 3} and set B = {2, 3, 4}, the difference A - B would yield {1}, indicating that 1 is an element in set A that is not shared with set B. This operation specifically targets the non-overlapping elements.

The other options serve different purposes: the union combines all elements from both sets, the intersection identifies elements that are shared, and the complement refers to elements outside of a specified set within a universal set but does not directly denote non-shared elements between two specific sets. Consequently, the difference operation is specifically designed to find elements exclusive to one set in relation to another.