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Flowlogistic is implementing a new real-time inventory tracking system. Previously, package-tracking messages were sent to an Apache Kafka cluster. However, with the new system, all tracking messages will be directed to a single Google Cloud Pub/Sub topic. A subscriber application will be responsible for processing these messages to allow for real-time reporting, and the processed data will be stored in Google BigQuery for future historical analysis. Considering these changes, which approach should you take to ensure that the package data can be effectively analyzed over time?
A
Attach the timestamp on each message in the Cloud Pub/Sub subscriber application as they are received.
B
Attach the timestamp and Package ID on the outbound message from each publisher device as they are sent to Cloud Pub/Sub.
C
Use the NOW() function in BigQuery to record the event's time.
D
Use the automatically generated timestamp from Cloud Pub/Sub to order the data.