## **Core Concept**
The question tests knowledge of renal pathology, specifically the types of immune deposits seen in various glomerular diseases. Subendothelial deposits refer to the accumulation of immune complexes beneath the endothelial cells lining the glomerular capillaries. This finding is characteristic of certain glomerulonephritides.

## **Why the Correct Answer is Right**
The correct answer, **C.**, corresponds to conditions with subendothelial deposits. One of the classic conditions associated with subendothelial deposits is **Membranoproliferative Glomerulonephritis (MPGN)**, particularly Type I. In MPGN Type I, subendothelial and sometimes subepithelial deposits are seen, along with the characteristic "tram-track" or "double contour" appearance of the glomerular basement membrane due to mesangial interposition. This condition often results from chronic infections, autoimmune diseases, or as a part of systemic diseases.

## **Why Each Wrong Option is Incorrect**
- **Option A:** This option does not correspond to a condition characteristically associated with subendothelial deposits. Conditions like **Minimal Change Disease** are characterized by the absence of immune deposits on electron microscopy and light microscopy, making this option incorrect.
- **Option B:** This option might refer to a condition with different types of deposits. For example, **Membranous Nephropathy** is characterized by **subepithelial** deposits, not subendothelial, making it incorrect for this question.
- **Option D:** This option could refer to another condition not primarily associated with subendothelial deposits. **Post-Streptococcal Glomerulonephritis (PSGN)**, for instance, typically shows **subepithelial humps** on electron microscopy, which are different from subendothelial deposits.

## **Clinical Pearl / High-Yield Fact**
A key point to remember is that the location and type of immune deposits within the glomerulus can significantly influence the diagnosis and pathogenesis of glomerulonephritis. For example, **subendothelial deposits** are often seen in conditions like **Lupus Nephritis** and **MPGN**, which have distinct clinical presentations and require different management strategies.

## **Correct Answer:** .