Which of the Following Is Not a True Statement

Multiple Choice

Which of the following is not a true statement?

A) Orthoclase, quartz, and topaz will be scratched by corundum on the Moh's Hardness Scale
B) Halite, calcite, apatite, and orthoclase are scratched by fluorite on the Moh's Hardness Scale
C) It is possible for the object or mineral that is being used to scratch something else to leave a trail of its own powder on the surface of a mineral
D) It is important to rub away the powder trail and feel the surface of a mineral for a groove to determine if the mineral has indeed been scratched