Answer: Option C
Explanation:
The renal capsule is the tough and fibrous layer which surrounds the kidney. It is covered by a layer of peri-renal fat which is known as adipose capsule of the kidney.
This structure helps to hold the kidney in their respective position inside the human body. Fatty layer also helps in the protection of kidney from the external injury, trauma and any other damage.
Hence, the correct answer is option C