![](https://cos-cdn.shuashuati.com/pipixue-wap/2020-1230-1107-53/ti_inject-812ce.png)
What is the main idea of this passage?
A.
Dr. Whitten and Dr. Schanze's researching experiments on disinfection.
B.
The possible way of eradicating hospital-caused infection and marine-dirt alike.
C.
The history and development of antiseptics.
D.
The process and principle of killing bacteria.