Charlie is afraid because he knows that the same thing will happen to him.
Explanation:

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The answer would be the last one, leave it as is. B and C change the meaning of the sentence entirely, while A sounds unnatural and is too verbose.
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Answer for number 1 is b
Answer for number 2 is b
Answer for number 3 is c
All you had to do is read carefully and focus on the passage, what I do to help me answer it quicker is Reading the questions and the options they give you for that question than I go back to the passage and read the passage so I know what I’m looking for in the passage. Always do that trust me it will help a lot.