The answer to your question is C.
Answer: A. Show her brother that she can beat him.
Explanation: I got it right on the instruction/practice.
Hey There!!
I think the answer to this is: The 3 one is. A Relative. The 4 one is. A noun. And, The last one is. adverbial.
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B. would be the correct comparison because the others either use wrong term or double comparison like more better. Best would be superlative and used for comparing three or more things. Gooder is not a word. More better is double comparison.
Answer:
take a picture of it that I can see what they mean perfectly