**Core Concept**
Glomerular deposits refer to the accumulation of substances within the glomeruli, which are critical components of the kidney's filtration system. Subendothelial deposits specifically refer to the presence of these substances beneath the endothelial cells that line the glomerular capillaries.

**Why the Correct Answer is Right**
Subendothelial deposits are characteristic of membranous nephropathy, a type of kidney disease that involves the thickening of the glomerular basement membrane. This thickening is due to the deposition of immune complexes and other substances beneath the endothelial cells, which impairs the glomeruli's ability to filter waste products from the blood. The presence of subendothelial deposits in membranous nephropathy is a hallmark feature of this condition and is often seen on electron microscopy.

**Why Each Wrong Option is Incorrect**
**Option A:** IgA nephropathy is characterized by the deposition of IgA antibodies in the mesangium, not subendothelial deposits.
**Option B:** Focal segmental glomerulosclerosis (FSGS) involves the sclerosis of glomeruli, but not typically subendothelial deposits.
**Option C:** Minimal change disease is characterized by normal glomerular morphology on light microscopy, with no subendothelial deposits.

**Clinical Pearl / High-Yield Fact**
When evaluating patients with kidney disease, it's essential to consider the location and type of glomerular deposits, as this information can help guide diagnosis and treatment.

**Correct Answer:** C.