The correct answer is Helm.

Helm is a package manager for Kubernetes that packages multi component applications into charts and it lets teams install, upgrade, and manage the entire platform as a unit. Helm provides templating for manifests, dependency handling, release history, upgrades, and rollbacks which simplifies ongoing management of complex applications.

gcloud is the Google Cloud command line tool for managing cloud resources and it is not a Kubernetes package manager so it does not handle chart based installs or release management for multi component apps.

kube-proxy is a cluster networking component that implements service load balancing and network rules on nodes and it is not used to deploy, package, or manage application releases.

kubectl is the Kubernetes command line for interacting with the API and it can apply manifests and perform imperative operations but it does not provide chart packaging, templating, dependency management, or release upgrade and rollback features that Helm offers.

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