When using the set of aggregation nodes, how does a developer tie the fan-out flow with the fan-in flow when it is included within the same message flow?

When using the set of aggregation nodes, how does a developer tie the fan-out flow with the fan-in flow when it is included within the same message flow?
A . No properties need to be set, since the fan-out and fan-in flows are in the same message flow.
B . Set the Aggregate Name property of the AggregateReply Node to the same value that you set for the Aggregate Name property in the corresponding Collector Node.
C . Set the Aggregate Name property of the AggregateReply Node to the same value that you set for the Aggregate Name property in the corresponding AggregateControl Node.
D . Set the Aggregate Name property of the AggregateReply Node to the same value that you set for the Aggregate Name property on each of the corresponding Aggregate Request Nodes in the fan-out flow.

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Answer: B