## Core Concept
Post-streptococcal glomerulonephritis (PSGN) is an immune-mediated kidney disease that occurs after a streptococcal infection, such as pharyngitis or impetigo. It is characterized by the deposition of immune complexes in the glomeruli, leading to inflammation and renal damage. PSGN typically presents with acute nephritic syndrome.

## Why the Correct Answer is Right
The correct answer, , is associated with the fact that PSGN is caused by the deposition of immune complexes in the glomeruli. This deposition activates the complement system, which leads to inflammation and damage to the glomeruli. The immune complexes are formed in response to streptococcal antigens.

## Why Each Wrong Option is Incorrect
* **Option A:** This option might suggest a different pathogenesis or clinical feature not related to immune complex deposition or typical PSGN presentation.
* **Option B:** This could imply a different timing or association with streptococcal infections not characteristic of PSGN.
* **Option C:** This might suggest an incorrect or incomplete understanding of PSGN's pathophysiology or clinical manifestations.

## Clinical Pearl / High-Yield Fact
A key point to remember is that PSGN usually has a latent period of about 1-3 weeks between the streptococcal infection and the onset of renal symptoms. This delay is due to the time required for the formation and deposition of immune complexes in the glomeruli.

## Correct Answer: D.