Which two GitOps controllers are the most popular?

The two most widely adopted GitOps controllers in the CNCF ecosystem areArgoCDandFlux. Both implement the GitOps principles of continuous reconciliation from Git as the source of truth.

“ArgoCD and Flux are the two primary CNCF GitOps controllers. They implement reconciliation loops to ensure the desired state in Git matches the cluster’s actual state.”

Thus, the correct answer isC.