"The Snake"

The figure above shows a flexible wire loop lying on a frictionless table top. The wire can slide around and change its shape freely, but it cannot move perpendicular to the table.

Part a
If a current were made to flow counterclockwise in the loop which of the following would happen?

1. The wire would stretch out into a circle.
2. The wire would contract down to a tangled mess.
3. Nothing.
4. There is not enough information to tell.