Place the following events in order:
a) Adrenal cortex releases cortisol.
b) Anterior pituitary gland releases ACTH.
c) Hypothalamus releases CRH.

a) 3c, 2b, 1a
b) 1a, 3c, 2b
c) 2b, 3c, 1a
d) 3c, 1a, 2b