What action can be taken to allow access to a desired site that is blocked by Web Control without allowing access to all sites in the same category?

Using website management to override the category is the most effective solution in this scenario. This approach allows you to specifically target the blocked site while maintaining the integrity of the Web Control policies that apply to other sites within the same category. By overriding the category for a specific website, you can enable access without broadly permitting unrestricted access to all sites in that category.

This method is particularly useful in environments where certain websites may be necessary for business operations or essential tasks, while others in the same category might still pose risks or be inappropriate. By implementing this targeted override, you ensure that your web security policies remain effective while also providing necessary access where it is needed.

Other choices could either broaden access in an undesired manner or involve more complex processes that do not provide the granularity required to address the specific situation of allowing access to just one site.