1 . 2a-b+-5b-a

• A. $\frac{-10}{\left(2ab-a-b\right)}$
• B. $\frac{-3}{\left(a-b\right)}$
• C. $\frac{-7}{\left(a-b\right)}$
• D. $\frac{-7}{\left(b-a\right)}$

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Answer: Option D

Explanation: