Although She Is Normally Not Aware of Its Existence,Ingrid Discovers

Multiple Choice

Although she is normally not aware of its existence,Ingrid discovers that she has a blind spot in her vision by closing one eye and focusing on a fixed point.What explains why Ingrid has this blind spot in her vision?

A) She is likely suffering from severe retinal degeneration.
B) She is experiencing sensory adaptation.
C) No photoreceptors are located where the optic nerve leaves the eye.
D) She has likely suffered damage to her occipital cortex.