A renal corpuscle is a ________, whereas a renal tubule is a ________.

A)cluster of blood capillaries and glomerular capsule; highly coiled tubule exiting the glomerular capsule
B)special blood cell in the kidneys; tubule that leads from the kidneys to the bladder
C)storage area for urine; tubule that carries urine from the urinary bladder outside
D)glandular structure that regulates blood pressure; blood vessel that regulates the flow of blood into the glomerulus