In Fusioninsight products, about Kafka Topic, which of the following descriptions are incorrect?

In Fusioninsight products, about Kafka Topic, which of the following descriptions are incorrect?
A . Each topic can only be divided into one partition
B . The number of Topic partitions can be configured at the time of creation
C . The storage level of each Partition corresponds to a log file, which records all information and data
D . Every message published to Kafka has a category, which is called Topic, which can also be understood as a queue for storing messages.

Answer: A