How segregation by class has replaced segregation by race.
Explanation:
In this example of Lusaka, we learn that the township of Roma was initially inhabited by the city's privileged white population. However, as the city's demographics changed, this area came to be inhabited by the new social group at the top of the hierarchy. This is the professional class of Lusaka. Whereas the township was segregated by race before, it is now segregated by class.
The answer is D. flashback, to give the reader background
information. It is a literary device wherein the author depicts the incident of
specific events to the reader, or events that have happened before the events
that are currently unfolding in the story which have taken place before the
present time the narration is following,.