Kustomizeis a Kubernetes-native configuration management tool that allows manifest customization without modifying the original YAML files. It uses overlays and patches to adapt configurations for different environments.
"Kustomize provides a declarative way to customize Kubernetes manifests by applying patches and overlays.
This allows managing multiple environments without duplicating manifest files." Thus, the correct answer isD.
References:GitOps Tooling (CNCF GitOps Working Group), Kustomize.

In GitOps, rollback is performed by reverting the system'sDesired Statestored in Git. This is done with thegit revertcommand, which creates a new commit that undoes the changes introduced by a previous commit.
"Because Git provides an immutable history of changes, rollbacks are straightforward. Reverting to a previous configuration is accomplished by reverting the commit in Git, which then allows the reconciler to apply the earlier desired state." Thus, the correct answer isB: git revert.
References:GitOps Tooling (CNCF GitOps Working Group).

The GitOps principle ofVersioned and Immutablerequires Desired State to be stored in a way that enforcesimmutability and versioning. This ensures every change is recorded, auditable, and reversible.
"Desired state must be kept in an immutable, version-controlled system. This guarantees a full history of changes and enables safe rollbacks." Thus, the correct answer isD.
References:GitOps Principles (CNCF GitOps Working Group).