What Happens to the Axons of the Ganglion Cells That

What happens to the axons of the ganglion cells that make up the optic nerve at the point where they leave the eyes?

A) All of the axons travel together to the optic chiasm.
B) The cells begin firing rapidly,and the image from the eye is sent via the bipolar cells to the brain.
C) They go directly to the visual cortex.
D) They separate,and half of them cross to the other side of the head at the optic chiasm.