Which of the following is true about router transformation
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a. You can connect more than one group to a multiple input group transformation, except for Joiner transformations, when you connect each output group to a different input group.
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b. You can connect more than one group to one target or a single input group transformation
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c. You can connect multiple output ports in one group to multiple transformations or targets
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d. You can connect one group to one transformation or target.
Router transformation splits data into multiple output groups based on group conditions. You can connect multiple output groups to the same downstream target or transformation (e.g., send multiple groups to one target table). This is different from other rules - Router's unique capability is that multiple groups can route to the same destination. The other options are incorrect: you cannot connect multiple groups to a multiple-input transformation except Joiner; you cannot connect multiple output ports in one group to multiple transformations in the same connection; and you're not limited to one group per transformation.