Read the following context and choose the best option to answer the question.
Context: Graphene looks like it 's going to be one of the " wonder materials " of the future , and a science team at Cornell University have just demonstrated the world 's smallest balloon made of it .
Question: How are the Cornell people able to make a balloon out of graphene ?
Options: 
- Graphene is wonderful and you can do a lot with it .
 - Graphene is just like latex , no chemical difference at all .
 - Cornell is able to use trash to get rid of graphene .
 - Cornell is lying , they did n't really do anything with graphene .


Graphene is wonderful and you can do a lot with it .