A 911 dispatcher is the sole sender of messages to all police officers. While on patrol, officers communicate with the dispatcher who, in turn, relays messages to other officers. The officers do not communicate directly with one another. This illustrates a network.

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Explanation: When the transfer of information or message within a group or band is done or performed from a single source. This means that

information transfer done by all group members reaches only a single source, in this case the 911 dispatcher. Here, group members are only enabled to communicate with the dispatcher rather than between themselves. And information can only reach the group members through the dispatcher alone. In summary, inflow of information reaches the 911 dispatcher alone and information outflow to group members can be done by the dispatcher alone.

the answer will be d

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