Which build steps are required for deploying SFRA code to a developer sandbox for the first time?

The necessary build steps for deploying SFRA (Salesforce Reference Architecture) code to a developer sandbox for the first time include compiling both JavaScript and SCSS, and also ensuring that all font assets are properly included. The deployment process typically involves transforming and preparing various types of files that make up the storefront, and this is crucial for the seamless operation of the B2C Commerce application.

When deploying SFRA, it is essential to compile JavaScript files to ensure any custom functionalities or modifications are activated. Similarly, SCSS compilation is necessary to convert SCSS files into CSS for styling the storefront. Additionally, compiling fonts ensures that any custom font resources are also included in the deployment, which is important for maintaining the visual identity of the site.

The correct option emphasizes these critical steps, making it vital for a first-time deployment to a developer sandbox, where developers test their configurations before moving to production. Other choices either omit necessary compilation commands or include irrelevant steps that do not contribute to the overall deployment process for SFRA code.