Nick's Grandfather Has Just Been Diagnosed with Glaucoma and Was

Multiple Choice

 Nick's grandfather has just been diagnosed with glaucoma and was told by his doctor that this condition results from a blockage of fluid in the anterior chamber of the eye. Based on Nick's understanding of the anatomy of the eye, he was able to tell his grandfather that the blockage involves his

A) vitreous humor, which circulates around the cornea and lens.
B) aqueous humor, which circulates around the cornea and lens.
C) vitreous humor, located in the main chamber of the eyeball.
D) aqueous humor, located in the main chamber of the eyeball.