Which gcloud command correctly creates a Bigtable instance named ts-instance in zone us-central1-b with 3 nodes?
Agcloud bigtable instances create ts-instance --cluster=ts-cluster --cluster-zone=us-central1-b --display-name="Time Series Instance" --cluster-num-nodes=3
Bgcloud bigtable instances create ts-instance --zone=us-central1-b --nodes=3
Cgcloud bigtable clusters create ts-instance --zone=us-central1-b --num-nodes=3
Dgcloud bigtable instances create ts-instance --cluster-zone=us-central1-b --num-nodes=3
