What Medical Development Greatly Advanced the Image of Surgeons and the Success

Multiple Choice

What medical development greatly advanced the image of surgeons and the success of health care in the decades before the Civil War?

A) The development of anesthesia
B) The discovery of the cause of epidemics
C) The development of new varieties of surgical steel that resulted in sharper scalpels
D) The realization of the importance of cleanliness
E) All of these choices