Which Google Cloud Platform services should you put in boxes 1,2,3, and 4?

You are building a pipeline to process time-series data.

Which Google Cloud Platform services should you put in boxes 1,2,3, and 4?

A . Cloud Pub/Sub, Cloud Dataflow, Cloud Datastore, BigQuery
B . Firebase Messages, Cloud Pub/Sub, Cloud Spanner, BigQuery
C . Cloud Pub/Sub, Cloud Storage, BigQuery, Cloud Bigtable
D . Cloud Pub/Sub, Cloud Dataflow, Cloud Bigtable, BigQuery

Answer: D

Explanation:

Reference:

https://cloud.google.com/solutions/correlating-time-series-dataflow

https://cloud.google.com/blog/products/data-analytics/handling-duplicate-data-in-streaming-pipeline-using-pubsub-dataflow

https://cloud.google.com/bigtable/docs/schema-design-time-series