In the xy-coordinate plane, what are the x-coordinates of the four vertices of square JKMN?
（1） J and M are on the x-axis, and K and N are on the y-axis.
（2） The center of the square is at the origin.
Statement (1) ALONE is sufficient, but statement (2) alone is not sufficient.
Statement (2) ALONE is sufficient, but statement (1) alone is not sufficient.
BOTH statements TOGETHER are sufficient, but NEITHER statement ALONE is sufficient.
EACH statement ALONE is sufficient.
Statements (1) and (2) TOGETHER are NOT sufficient.