Refer to the given classification chart of rocks. Select the option that correctly matches the rocks (X, Y, Z) with its characteristic.
A X-Marble , Y-Granite , Z-Limestone
B X-Sandstone , Y-Marble , Z-Slate
C X-Granite , Y-Quartzite , Z-Limestone
D X-Limestone , Y-Gneiss , Z-Slate
The correct answer is C.