In fault-tolerant DRTOS design, what is the key benefit of active replication compared to passive replication?

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A. All replicas process the task simultaneously, reducing switchover delay

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C. Replicas execute only if a failure is detected

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D. It reduces the overall CPU load across the distributed system

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E. It eliminates the need for synchronization among replicas

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B. Only one replica executes the task while others store checkpoints

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