## Core Concept
The question pertains to the history of medical literature and the origins of organized medical knowledge. It tests the understanding of foundational texts in medical history.

## Why the Correct Answer is Right
The **Ayurveda**, specifically the Charaka Samhita, is often cited as one of the oldest and most comprehensive bodies of medical knowledge. It is an ancient Indian medical text that systematically covers a wide range of medical topics, including anatomy, physiology, pathology, diagnosis, and treatment. The Charaka Samhita, attributed to Charaka, is considered a foundational text of Ayurveda, showcasing a well-organized approach to health and medicine.

## Why Each Wrong Option is Incorrect
- **Option A:** While Hippocratic Corpus is a significant body of medical knowledge from ancient Greece, it is not considered the first organized body of medical knowledge globally, as it was developed around the same time or slightly after Ayurveda.
- **Option B:** The Ebers Papyrus is an ancient Egyptian medical text, but it is more of a collection of medical knowledge rather than a systematically organized body like Ayurveda.
- **Option D:** The works of Galen, a Greek physician, were highly influential but built upon earlier organized systems of medicine.

## Clinical Pearl / High-Yield Fact
A key point to remember is that **Ayurveda**, with its roots in ancient India, not only represents a medical system but also a philosophy of life. The Charaka Samhita, dating back to around 400 CE, is remarkable for its detailed descriptions of medical practices, emphasizing the balance of body, mind, and spirit.

## Correct Answer: C. Ayurveda