Phenomena Such as Blindsight and Visual Agnosia Demonstrate That

Phenomena such as blindsight and visual agnosia demonstrate that

A) brain damage does not always cause deficits in perception.
B) consciousness and perception are unrelated.
C) conscious perception is always necessary for behaviour to occur.
D) perceptions can cause behaviour even when we are not aware of them.
E) behaviours can occur even when we are not conscious of them.