A parallel sentence mentions the same grammatical expression twice. I would go with "D". 'Passed' and 'Demonstrated' are both past tense words that express the same past tense grammatical idea.
If you have more questions, feel free to ask me.
Answer:
Racism, segregation/separation of races; systemic inequality
Explanation:
Cool story though. girl makes snow angel - makes it on old grave of a young girl....oooooooo stuff starts to happen. Strange things happen and she begins having nightmares.
Answer:
Paul is confused about why he and Robert are going to different schools.
Explanation:
In the passage, Paul keeps asking his father why he and Robert have to go to different schools, and doesn't understand why they can't go to the same school. This implies that Paul is confused.
hope this helps :)