Quantity A and Quantity B need to be simplified first, so we will able to decide about the answer without plugin.

Quantity A: 10x + 2

Quantity B: 2x + 10

If we subtract any value from the two Quantities, the resultant will not change the greater quantity to less. So we can subtract by same value.

So let's subtract by (2x +2) from both Quantity A and Quantity B, we'll get:

Quantity A: 8x

Quantity B: 8

Finally, we can decide easily that x can be positive, negative or zero. Thus,

Choice D is correct.

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