For GitHub to generate a dependency graph for a private repository, two fundamental conditions must be met. First, the feature must be explicitly enabled, as it is not on by default for private repositories. Enabling it at the organization level for all new private repositories is a valid method to satisfy this requirement. Second, GitHub's scanning service requires permission to access and parse the files that define the project's dependencies. This requires, at a minimum, read-only access to the specific dependency manifest (e.g., package.json, pom.xml) and lock files within the repository.

A. This is incorrect because GitHub does not need access to all repository files. The principle of least privilege applies; only read access to dependency-related manifest and lock files is necessary.

C. This is incorrect because generating the dependency graph is a read-only process. GitHub scans and analyzes files but does not modify them, so write access is not required.

1. GitHub Docs

"About the dependency graph." This document states

"The dependency graph is enabled by default for all public repositories. You can choose to enable it for private repositories." This supports the requirement that the feature must be enabled (Option B). It also details that GitHub scans common package manifests

which implies a need for read access to those files (Option D).

Source: GitHub Docs

Code security > Supply chain security > Understanding your software supply chain > About the dependency graph.

2. GitHub Docs

"Configuring the dependency graph." This guide provides the specific procedures for activation. It confirms that for private repositories

an administrator must "enable the dependency graph." It outlines the steps to enable it for an individual repository or for all repositories in an organization

validating the action described in Option B.

Source: GitHub Docs

Code security > Supply chain security > Understanding your software supply chain > Configuring the dependency graph.