The correct option is D Anterior chamber
The space in the eye that is behind the cornea and in front of the iris is an anterior chamber, which is filled with a watery fluid known as the aqueous humor or aqueous. It nourishes the internal structures. Normally, the aqueous humor is produced in the posterior chamber, flows slowly through the pupil into the anterior chamber, and then drains out of the eyeball through outflow channels located, where the iris meets the cornea.
So, the correct answer is option B.