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Your Cloud Dataproc cluster is under a heavier workload than usual, and you're considering adding several preemptible VMs as worker nodes to manage the load. Which command should you use to accomplish this?
A
gcloud dataproc clusters update with the --num-secondary-workers parameter
B
The number of preemptible nodes in a Cloud Dataproc cluster cannot be changed once the cluster is created.
C
gcloud dataproc clusters update with the --preemptible-vms parameter
D
gcloud dataproc clusters update with the --num-workers parameter
