Proof that a microbe could cause disease was provided byGroup of answer choicesWasserman.Pasteur.Lister.Semmelweis.Koch.

To determine who provided proof that a microbe could cause disease, we can analyze each option presented:

1. Wasserman - Known primarily for the Wassermann test for syphilis, which is not directly about microbes causing disease.

2. Pasteur - Louis Pasteur conducted experiments that debunked spontaneous generation and showed that microorganisms could cause fermentation and spoilage but did not directly formulate the germ theory.

3. Lister - Joseph Lister is recognized for developing antiseptic surgical methods but is not credited with proving that microbes cause disease directly.

4. Semmelweis - Ignaz Semmelweis introduced handwashing in medical practices to prevent infection but did not specifically tie microbes to disease causation.

5. Koch - Robert Koch is renowned for formulating Koch's postulates, a series of criteria designed to establish a causative relationship between a microbe and a disease.

Conclusion

The individual who provided proof that a microbe could cause disease is Koch. He laid the groundwork for microbiology and infectious disease pathology through his systematic approach.