**Core Concept**
Apostosis, also known as programmed cell death, is a process of cellular self-destruction that occurs in multicellular organisms. This process is essential for removing damaged or unwanted cells from the body, maintaining tissue homeostasis, and preventing cancer. On light microscopy, apoptosis can be identified by specific morphological changes in the affected cells.

**Why the Correct Answer is Right**
The characteristic feature of apoptosis on light microscopy is the presence of apoptotic bodies, which are small, membrane-bound vesicles containing fragmented cellular material. These apoptotic bodies are formed when the cell undergoes a series of morphological changes, including cell shrinkage, chromatin condensation, and DNA fragmentation. The presence of these apoptotic bodies is a hallmark of apoptosis and can be observed in various tissues, including the liver, kidney, and bone marrow.

**Why Each Wrong Option is Incorrect**
* **Option A:** This option is incorrect because it does not describe a characteristic feature of apoptosis on light microscopy. While cell shrinkage is a feature of apoptosis, it is not the most distinctive or diagnostic feature.
* **Option B:** This option is incorrect because it describes a feature of necrosis, not apoptosis. Necrosis is a form of accidental cell death that occurs due to injury or infection, and it is characterized by cell swelling, rather than cell shrinkage.
* **Option C:** This option is incorrect because it describes a feature of cell division, rather than apoptosis. Mitosis is the process of cell division that results in the formation of two daughter cells, and it is not a characteristic feature of apoptosis.

**Clinical Pearl / High-Yield Fact**
Apoptosis plays a critical role in maintaining tissue homeostasis and preventing cancer. Dysregulation of apoptosis has been implicated in various diseases, including cancer, autoimmune disorders, and neurodegenerative diseases.

**Correct Answer: C. Apoptotic bodies.