Salesforce Public Sector Solutions provides pre-built Experience Cloud templates, such as the "Licenses and Permits" template, specifically designed to accelerate deployment. This template includes the necessary pages, layouts, and pre-configured OmniStudio components (OmniScripts for guided application flows and FlexCards for displaying data) out-of-the-box. Creating a new digital experience using this dedicated template is the most efficient method that significantly minimizes customization and configuration effort. While it results in a new site, it directly addresses the core requirement using a standard, repeatable solution, which is a primary goal over modifying a potentially unsuitable existing site.

A. This option is less precise than C. While it mentions creating a new site, it generically refers to "Experience components" instead of the specific OmniScripts and FlexCards that are fundamental to the Public Sector Solutions application framework.

B. Modifying an existing Help Center site would require extensive manual configuration and custom development to integrate the complex PSS components and workflows, directly contradicting the primary goal of minimizing customization.

D. OmniOut is a feature used to embed OmniStudio components into external, non-Salesforce websites. It is not the correct technology for deploying components within a Salesforce Experience Cloud site.

1. Salesforce Help, Public Sector Solutions Developer Guide, "Set Up an Experience Cloud Site with a Public Sector Solutions Template": This document explicitly states, "To quickly set up a site for your constituents, use one of the Public Sector Solutions templates... The Licenses and Permits template includes pages and components that constituents can use to apply for licenses and permits, upload required documents, and pay fees." This supports creating a new site from the specific template to minimize setup and customization.

2. Salesforce Help, Public Sector Solutions Developer Guide, "Public Sector Solutions Components for Experience Cloud": This guide details the specific components available, such as the "Business License Application" OmniScript and various FlexCards (e.g., "PSS My Licenses and Permits"). This confirms that OmniScripts and FlexCards are the core technologies used, as stated in option C.

3. Salesforce OmniStudio Developer Guide, "OmniOut for Experience Cloud Sites": The official documentation states, "OmniOut is not supported for Experience Cloud sites." This directly invalidates option D as a technically feasible solution for this scenario.