Which type of lists consists of values that are a subset of another list of values?

Cascading LOVs, or cascading lists of values, are designed to filter a list of values based on the selection made in a preceding list. For example, when a user selects a specific category, the subsequent list will display only the options that are relevant to that chosen category, effectively creating a subset of the original list of values. This dynamic relationship allows users to make selections while narrowing down their choices, ensuring that the options presented are contextually relevant and streamlined.

In contrast, subsets as a standalone option might imply a general collection of values derived from another list without emphasizing the interactive filtering process typical of cascading LOVs. Hierarchical LOVs might refer to lists that have a parent-child relationship but do not inherently focus on the conditional filtering aspect. Nested lists typically suggest a more structural arrangement of items within one another rather than the filtering action seen in cascading lists. Thus, cascading LOVs is the most fitting choice for this context.