Which command is used to upgrade a Tanzu Kubernetes Grid Cluster (TKG) to a different kubernetes version?

Which command is used to upgrade a Tanzu Kubernetes Grid Cluster (TKG) to a different kubernetes version?
A. tkg cluster upgrade <cluster_name> –k8s-version <version>
B. tkg upgrade cluster <cluster_name> –kubernetes-version <version>
C. tkg cluster upgrade <cluster_name> –kubernetes-version <version>
D. tkg upgrade cluster <cluster_name> –version <version>

Correct Answer: B
Explanation/Reference:
Reference: https://docs.vmware.com/en/VMware-Tanzu-Kubernetes-Grid/1.2/vmware-tanzu-kubernetes-grid-12/GUID-upgrade-tkg-workload-clusters.html