A dependent clause should have no punctuation between an independent clause when the dependent clause comes afterwards.
If you want to use consistent verb tenses in telling a story, that means you have to use the same tense, or at least they all should be in the past/present/future, depending on the first verb in the sentence. Here, the correct answer is:
B) I met Rob for the first time in the school infirmary, and he smiled at me even though he was clearly in pain.
Answer: The correct answer is "was not known" because the word knew is past tense
Explanation:
To earn affection from the people and to eventually encourage them to convert religion, the white man, Mr. Brown, put indirect efforts to bring people in to his side. He promoted schools to bring forth education to transact trades inclusive to all people regardless of their social and cultural upbringing. Answers are A and D