Sir Percival Pott, Who Wrote Chirurgical Observations

Sir Percival Pott, who wrote Chirurgical Observations:

A) was the father of modern biostatistics.
B) established postulates for transmission of infectious disease.
C) was an English anesthesiologist who used natural experiments.
D) argued that the environment was associated with diseases such as malaria.
E) was a London surgeon who identified an environmental cause of cancer.