## Core Concept
The classical features of inflammation are fundamental concepts in pathology that describe the typical signs and symptoms associated with inflammatory responses in the body. These features are often remembered using the Latin terms **rubor, calor, dolor,** and **tumor**, which translate to redness, heat, pain, and swelling, respectively.

## Why the Correct Answer is Right
The correct answer, which corresponds to the description of the 4 classical features of inflammation, is attributed to Aulus Cornelius Celsus, a Roman medical writer. He described these features as **rubor (redness), calor (heat), dolor (pain),** and **tumor (swelling)**, which are still recognized today as the cardinal signs of inflammation. These signs are manifestations of the inflammatory process, which involves increased blood flow to the affected area, leading to redness and heat, and the release of chemical mediators that cause pain and increased vascular permeability, resulting in swelling.

## Why Each Wrong Option is Incorrect
- **Option A:** This option is incorrect because it does not accurately represent the description of the classical features of inflammation.
- **Option B:** This option is incorrect as it also does not correctly describe or attribute the classical features of inflammation.
- **Option D:** Similarly, this option does not provide the accurate description or attribution of the 4 classical features of inflammation.

## Clinical Pearl / High-Yield Fact
A key point to remember is that while Celsus described the four cardinal signs of inflammation (**rubor, calor, dolor, tumor**), a fifth sign, **functio laesa** (loss of function), was later added by Rudolf Virchow. This highlights the importance of understanding both the classical and more comprehensive descriptions of inflammation.

## Correct Answer Line
**Correct Answer: C.**