When using the MQTTPublish Node to route messages, how can it be determined if the message was published successfully?
A. Check the Boolean in LocalEnvironemnt.Destination.MQTT.Output.retained in a node wired to the Out terminal of the MQTTPublish Node
B. Check the Boolean in LocalEnvironemnt.WrittenDestination.MQTT.Output.retained in a node wired to the Out terminal of the MQTTPublish Node
C. Check the Boolean in LocalEnvironemnt.Destination.MQTT.DeliveryToken.is Complete in a node wired to the Out terminal of the MQTTPublish Node
D. Check the Boolean in LocalEnvironemnt.WrittenDestination.MQTT.DeliveryToken.is Complete in a node wired to the Out terminal of the MQTTPublish Node
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Ref: https://www.ibm.com/support/knowledgecenter/SSMKHH_10.0.0/com.ibm.etools.mft.doc/bc62011_.htm