**Core Concept**
Mutton fat keratic precipitates (KF) and Busacca nodules are clinical manifestations associated with inflammation within the anterior chamber of the eye, specifically in uveitis. These ocular findings are indicative of an immune-mediated response.

**Why the Correct Answer is Right**
Mutton fat KF and Busacca nodules are characteristic of intermediate uveitis, which involves the vitreous and peripheral retina. The presence of these findings suggests a chronic inflammatory process, often associated with conditions such as sarcoidosis, multiple sclerosis, or Behçet's disease. The mutton fat appearance of KF is due to the aggregation of inflammatory cells, while Busacca nodules are formed by the accumulation of immune complexes on the iris surface.

**Why Each Wrong Option is Incorrect**
**Option A:** This option is incorrect as mutton fat KF and Busacca nodules are not typically seen in anterior uveitis, which is characterized by inflammation limited to the iris and ciliary body.
**Option B:** This option is incorrect as posterior uveitis primarily involves the retina and choroid, and is not typically associated with mutton fat KF and Busacca nodules.
**Option C:** This option is incorrect as while sarcoidosis can cause uveitis, it is not the only condition associated with mutton fat KF and Busacca nodules.

**Clinical Pearl / High-Yield Fact**
Mutton fat KF and Busacca nodules are classic signs of intermediate uveitis, and their presence should prompt a thorough investigation for underlying systemic diseases.

**Correct Answer:** B.