question_answer

Match the following:

Column A		Column B
I.	Gypsum	A.	Pencil lead
II.	Emerald	B.	Blackboard chalk
III.	Graphite	C.	Light bulb
IV.	Tungsten	D.	Gemstone

A) I\[\to \]C, II\[\to \]D, III\[\to \]A, IV\[\to \]B

B) I\[\to \]D, II\[\to \]A, III\[\to \]C, IV\[\to \]B

C) I\[\to \]B, II\[\to \]D, III\[\to \]C, IV\[\to \]A

D) I\[\to \]B, II\[\to \]D, III\[\to \]A, IV\[\to \]C

E) None of these