Which method is supported to change Kubernetes version for Tanzu Kubernetes clusters on VMware vSphere with Tanzu?
A. Upgrade by incremental Kubernetes version e.g. 1.17 to 1.18
B. Change the major version, e.g. from v1.18 to v2.0
C. Decrease Kubernetes version e.g. 1.18 to 1.17
D. Upgrade by skipping Kubernetes version e.g. 1.16 to 1.18