A cold, moonlit night on the beach.
Because it gives details of where, when something takes place.
In case anyone needs extra confirmation, the correct answer is indeed:
"It helps convey the idea that, during apartheid, many South Africans who disapproved of their government's racist policies did not trust the police to follow the law or to be honest about their actions."
Just took the test and got this right :)
All of the above is the correct answer
Answer: C - an introduction of theme
Explanation: