x and y can be virtually anything.
Assume, x=y= 25

Median of Set D = {13, 17 ,22, 24, 25} = 22
Median of Set E = {13, 17 ,22, 24, 25} = 22

Medians are equal, so Quantity A = Quantity B

Now Assume x = 10, y=25
Median of Set D = {10, 13, 17 ,22, 24} = 17
Median of Set E = {13, 17 ,22, 24, 25} = 22

Quantity A < Quantity B


Since two possible values are there; Answer is D