The Fact That Faces Are More Difficult Than Many Other

The fact that faces are more difficult than many other types of objects to recognize when viewed upside-down is taken by many researchers to indicate that

A) faces are recognized via structural descriptions.
B) it is more difficult to segment faces from their backgrounds than other types of objects.
C) face recognition cannot be doubly dissociated from object recognition.
D) face recognition can be doubly dissociated from object recognition.
E) the visual system uses special recognition processes for faces that are not used for other types of objects.