Figure shows a human urinary system with structures labelled A to D. Select option which correctly identifies them and gives their characteristics and/or functions.

| 1. |
B-pelvis - broad funnel-shaped space inner to the hilum, directly connected to loops of Henle. |
| 2. |
C- Medulla- inner zone of kidney and contains complex nephrons. |
| 3. |
D- Cortex- outer part of the kidney and does not contain any part of nephrons. |
| 4. |
A- Adrenal gland- located superior of the kidney; secretes catecholamines which stimulate glycogen breakdown. |