Even Though the Articulatory Loop Cannot Be Seen Directly, We

Multiple Choice

Even though the articulatory loop cannot be seen directly, we are confident it exists because

A) it is the only possible explanation.
B) without it, we could not remember phone numbers.
C) people with anarthria show deficits in the phonological buffer.
D) behavioral manipulations, like articulatory suppression, suggest it is a distinct component.