**Core Concept**
The Web of Causation is a theoretical framework used to understand the complex interactions and relationships between various factors that contribute to the development and progression of diseases. This concept emphasizes the multifactorial nature of disease and the need to consider multiple variables when investigating and managing health outcomes.

**Why the Correct Answer is Right**
The Web of Causation was introduced by Geoffrey Rose, a British epidemiologist, as a way to describe the complex interplay between various factors that contribute to disease. This framework recognizes that disease is not solely the result of individual risk factors, but rather the outcome of a dynamic interrelationship between multiple factors, including social, environmental, and biological determinants. By considering the web of causation, healthcare professionals can better understand the underlying causes of disease and develop more effective prevention and intervention strategies.

**Why Each Wrong Option is Incorrect**
**Option A:** This option is incorrect because the Web of Causation is a specific theoretical framework that was not introduced by John Snow, who is known for his work on cholera epidemiology.
**Option B:** This option is incorrect because the Web of Causation is not a concept that was developed by Sir Richard Doll, who is known for his work on the relationship between smoking and lung cancer.
**Option C:** This option is incorrect because the Web of Causation is not a concept that was introduced by Thomas McKeown, who is known for his work on the history of medicine and the demographic transition.

**Clinical Pearl / High-Yield Fact**
The Web of Causation emphasizes the importance of considering multiple factors when investigating and managing disease, rather than focusing on individual risk factors in isolation. This approach can help healthcare professionals to develop more effective prevention and intervention strategies that take into account the complex interplay between various determinants of health.

**Correct Answer:** D. Geoffrey Rose