Reapportionment can impact minority rights in several ways, primarily through changes in congressional representation. The correct response that encapsulates this impact is:
Minority voters may gain or lose congressional representation based on population changes.
This reflects the fact that shifts in population can lead to changes in how districts are drawn, potentially affecting the representation of minority groups. When districts are redrawn, it can either enhance or diminish the political power of minority voters, depending on how those districts are configured.