It's a good question.

First need to simplify and then plugin as below:

Quantity A: \(5b^2\) – 10b + 7

Quantity B: b

So, we can add 10b on both Quantities, because the inequality will not change i.e:

Quantity A: \(5b^2\) + 7

Quantity B: 11b

Now, don't plugin -ve values, because Quantity A will always greater (being positive). Also in 0, Quantity A will be greater.

Finally, just check for positive values. You will see Again, Quantity A always greater.

For positive values, just plugin one value from (0 - 1) and other one from any value greater than 1.

Choice

Choice A is correct.

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