What is necessary for a composite worksheet to display cached results?

For a composite worksheet to display cached results, it is crucial that all component worksheets are also authored for cached results. This means that each individual worksheet contributing to the composite must be optimized and designed to utilize caching strategies effectively. When worksheets are authored with caching in mind, they can save time and processing power by storing and quickly retrieving data rather than recalculating it with every request.

If any component worksheet does not support cached results, the composite worksheet will be unable to leverage the benefits of caching, leading to potential performance issues or delays. Therefore, the entire structure relies on the integration of each component's capability to handle cached data.

The other options focus on different aspects of worksheet design or functionality that are not directly related to caching, which is why they do not support the requirements for displaying cached results.