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May I ask why the correct answer is A?

May I ask why the correct answer is A?-example-1
User Shannakay
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Answer: A

Step-by-step explanation:

For II, when the numerator is expanded, it contains terms of ab and a^2 which makes it a quadratic function, not an algebraic function.

For III, tricky one. The a can be cancelled out in the numerator and denominator and the resulting fraction is (b-3)/3. However, this can be further simplified to 1/3b - 1, which makes it not an algebraic fraction anymore.

User Tyler Rick
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