Josie has panic disorder, while Herbie does not have an anxiety disorder. They are both shown pictures of sad and angry faces. The researchers studying Josie and Herbie's brain responses while they look at the pictures will most likely note that

a) Josie's amygdala is more active than that of Herbie's.
b) Josie's amygdala is less active than that of Herbie's.
c) Herbie's fear circuit is more active than that of Josie's.
d) none of the above.

a