RohitRC
1
In this question if we take:

a=2, x=-3

b=3, y=-2

then, a+b>x+y and the answer is D.

Is there any specific reason as to why we can’t take x,y as negatives?

Source: ETS Math Review

P.S. Highly recommend to scroll through ETS Math Review and ETS Math conventions .(Just google to find them!)