My choice would be A. It’s not B since “the conflict are” is incorrect. Not C since “they writes” is incorrect. And I believe D is incorrect since “a Nobel Prize winner” doesn’t agree with “are” — you could rewrite it as “The Nobel prize winner IS either Lessing or Gordimer”.
Answer:
D seems like the best answer.
Explanation:
This is the only one relevant to vending machines and why they would be a good idea to keep.
Who are they and like how
When did he know that phrasal verbs would be so difficult to learn.