单选题

Choose the best answer.
What does the binlog dump thread do?

AIt monitors and schedules the rotation/deletion of the binary logs.

BIt connects to the master and asks it to send updates recorded in its binary logs.

CIt acquires a lock on the binary log for reading each event to be sent to the slave.

DIt reads the relay log and executes the events contained in them.

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正确答案：A （备注：此答案有误）

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