Final answer:
The aqueous humor in the eye is drained through the canal of Schlemm, which regulates intraocular pressure.
Step-by-step explanation:
The aqueous humor is the watery fluid that fills the anterior chamber of the eye, which includes the space between the cornea, iris, ciliary body, and lens. The correct answer to the question of how aqueous humor is drained from the eye is (C) through the canal of Schlemm.
The canal of Schlemm, also known as the scleral venous sinus, is responsible for draining the aqueous humor from the anterior chamber into the bloodstream, thereby regulating intraocular pressure and maintaining a healthy eye environment.