Which of the following is a limitation of the Formula column?

The Formula column in Monday.com is designed to perform calculations based on data within the same item or row. Its primary limitation is that it cannot read data from other column cells outside of its own row. This means while it can manipulate and calculate based on the data in other columns of the current item, it does not have the capability to access or utilize data from other rows or from other boards. Therefore, option C accurately reflects this limitation.

The other options represent capabilities of the Formula column or aspects that are not inherently limiting. For instance, the Formula column can read data from column summaries, execute calculations vertically across the columns of the same item, and can also work with formulas across multiple boards if configured appropriately with the right integrations or connectors, among other advanced features. However, those do not pertain directly to the limitations of the Formula column itself as compared to its access to data in different cells or boards.