The answer should be A.
Statement I
x=y+2
if y=1/2, x=2.5 x>y
if y=4, x=6 x>y
if y=-4, x=-2 x>y
if y=-1/2, x= 1.5 x>y
Sufficient.
Statement II
x/2=y-1 => x=2y-2
if y=6, x=10 x>y
if y=-6, x= -14 x<y
Hence Insufficient.
The answer is A.
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