Which is the correct way to create a pull subscription using gcloud CLI?
Agcloud pubsub subscriptions create my-sub --topic=my-topic --push-endpoint=https://example.com
Bgcloud pubsub subscriptions create --push-endpoint=https://example.com my-sub
Cgcloud pubsub subscriptions create my-sub --push
Dgcloud pubsub subscriptions create my-sub --topic=my-topic