Which of the following enables users to upload files directly through forms in Smartsheet?

The correct answer is focused on the feature that allows users to upload files directly through forms in Smartsheet. When using a form created within Smartsheet, the "Upload From Computer" option provides users with the ability to attach files as part of their form submission. This functionality is crucial for collecting supplementary documents or information alongside standard responses, thereby enhancing the richness and utility of the data captured through the form.

In contrast, while the other options may relate to file handling or sharing within Smartsheet, they do not specifically facilitate direct file uploads through forms. For instance, file sharing links typically refer to mechanisms for sharing existing files rather than allowing new uploads through a form. Remote uploads and cloud storage options also relate to file management but do not integrate directly with the form submissions as the "Upload From Computer" feature does, making it the most appropriate answer to the question about enabling uploads directly through forms.