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Joining two topics in Kafka Streams

You join a KStream of orders with a KTable of customers, both keyed by customer_id. orders has 12 partitions and customers has 8. What happens?

A.The join works, but each lookup is slowerB.The partition counts differ, so the topics are not co-partitionedC.Kafka Streams joins only the first 8 partitions of ordersD.The join returns every order with a null customer

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Joining two topics in Kafka Streams

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