Renin release is the first step in a series of cascading reactions, collectively termed the ________________________________________.
a) Renin-Angiotensin-Aldosterone System (RAAS)
b) Hypothalamus-Pituitary-Adrenal Axis (HPA Axis)
c) Thyroid Stimulus Pathway (TSP)
d) Antidiuretic Hormone Feedback Loop (ADHFL)