Which of the following describes the magnetic field produced by a current carrying wire? Assume the wire is normal to the page, and that current is flowing into the page.

A.) The magnetic field is directly into the page.

B.) The magnetic field is directly out of the page.

C.) The magnetic field surrounds the wire like a tube, with a clockwise field direction.

D.) The magnetic field surrounds the wire like a tube, with a counterclockwise field direction.