Graphene is often in the headlines these days. What is its importance? 1. It is a two-dimensional material and has excellent electrical conductivity. 2. It is one of the dilute but most potent substances ever tested. 3. It is completely made of silicon and has high visual transparency. 4. It can be used as a 'driver electrode' for touch screens, LCDs and organic LEDs.

Graphene is often in the headlines these days. What is its importance?

1.	Graphene is often in the headlines these days. What is its importance? 1. It is a two-dimensional material and has excellent electrical conductivity. 2. It is one of the dilute but most potent substances ever tested. 3. It is completely made of silicon and has high visual transparency. 4. It can be used as a 'driver electrode' for touch screens, LCDs and organic LEDs.
A.	1 and 2
B.	3 and 4
C.	1,2 and 4
D.	all these
Answer» D. all these