Statement 1) As factorials are defined only for integers, y = 3 and x is at least 7. As we don't know the value of z we can't answer the question. INSUFFICIENT.
Statement 2) The least even integer greater than -1 is 0. So the product XYZ value is 0. SUFFICIENT.
OPTION: B
Statement 2) The least even integer greater than -1 is 0. So the product XYZ value is 0. SUFFICIENT.
OPTION: B